{"title":"Bestseller","description":"","products":[{"product_id":"ultimate-system","title":"Penile Traction Device Kit — SizeGenetics® Ultimate System (FDA-Registered \u0026 CE-Certified)","description":"\u003cp class=\"sg-trust-bar\"\u003e\u003cstrong\u003e✓ FDA-Registered \u0026amp; CE-Certified Medical Device  ·  ✓ 1,000,000+ Sold Since 1994  ·  ✓ 1-Year Warranty  ·  ✓ Money-Back Confidence Guarantee\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eThe most complete penile traction device kit SizeGenetics makes.\u003c\/strong\u003e The SizeGenetics™ Ultimate System bundles the flagship SizeGenetics penile traction device with every comfort accessory, the full elongation-bar range, and a progressive 6-week training program — everything an adult man needs to apply penile traction therapy correctly, comfortably and privately at home. It is an \u003cstrong\u003eFDA-registered and CE-certified\u003c\/strong\u003e medical device, Danish-engineered by Danamedic ApS, the manufacturer of record and the company that invented penile traction therapy in 1994.\u003c\/p\u003e\n\n\u003ch2\u003eWhat a penile traction device kit is\u003c\/h2\u003e\n\u003cp\u003eA penile traction device kit is a complete at-home system that applies sustained, calibrated mechanical tension along the penile shaft to support gradual tissue adaptation. The kit combines the traction device itself — a precision frame that holds the shaft under steady longitudinal load — with the comfort fittings, elongation bars and wear guidance needed for the long, repeatable daily sessions the therapy requires. The SizeGenetics™ Ultimate System is the most complete configuration in the SizeGenetics range: where the entry kits include the device and core accessories, the Ultimate System adds the full comfort set, the complete elongation-bar range, premium storage and a structured training schedule, so a first-time user has every part of the protocol in one box.\u003c\/p\u003e\n\u003cp\u003eSizeGenetics has delivered penile traction devices to over 1,000,000 men since 1994, when Danamedic ApS brought the first penile traction device to market. The Ultimate System packages that 30-year platform into a single, guided kit.\u003c\/p\u003e\n\n\u003ch2\u003eHow penile traction therapy works\u003c\/h2\u003e\n\u003cp\u003ePenile traction therapy applies a steady, comfortable stretch along the length of the shaft. The SizeGenetics™ device delivers \u003cstrong\u003estraight, one-direction longitudinal traction\u003c\/strong\u003e — gentle, single-axis tension held over extended wear, never angled or directional. Sustained mechanical load is thought to stimulate \u003cstrong\u003emechanotransduction\u003c\/strong\u003e, the cellular process by which tissue converts mechanical force into a biological adaptation response, the same principle applied in orthopedic and reconstructive medicine. Chung \u0026amp; Brock (\u003cem\u003eTherapeutic Advances in Urology\u003c\/em\u003e, 2013) documented that mechanical traction drives \"reorganization and remodelling of collagen fibres into uniform densely packed fibrils parallel to the axis of mechanical strain.\" Worn consistently over several months at roughly 4–6 hours per day, the device is designed to support gradual changes in penile length and girth. The wider science of how sustained tension reshapes penile tissue over time is covered in the SizeGenetics \u003ca href=\"\/en-au\/blogs\/penile-traction-therapy\"\u003epenile traction therapy\u003c\/a\u003e guide.\u003c\/p\u003e\n\u003cp\u003eTension on the SizeGenetics™ system is adjustable. A new user starts gentle at around \u003cstrong\u003e900 grams (≈9 N)\u003c\/strong\u003e and builds, as comfort allows, toward a maximum of \u003cstrong\u003e2,800 grams (≈27 N)\u003c\/strong\u003e by adding elongation bars from the full set included in the Ultimate System.\u003c\/p\u003e\n\n\u003ch2\u003eWhat the clinical research shows about penile traction\u003c\/h2\u003e\n\u003cp\u003ePenile traction therapy is the subject of more than 15 peer-reviewed clinical publications. The therapy's strongest documented outcomes cover two areas: \u003cstrong\u003ecurvature correction\u003c\/strong\u003e in men with Peyronie's disease, and \u003cstrong\u003elength recovery\u003c\/strong\u003e after prostatectomy. Peer-reviewed data on length gains in non-surgical settings exist but come from smaller studies in specific clinical populations — not the general healthy male population.\u003c\/p\u003e\n\u003cp\u003eTwo cohort studies reported length outcomes in non-surgical settings. Gontero and colleagues (\u003cem\u003eJournal of Sexual Medicine\u003c\/em\u003e, 2009, PMID 19138361) enrolled 15 men with stabilized Peyronie's disease wearing a penile traction device at least 5 hours per day; at 6 months, mean stretched penile length increased by \u003cstrong\u003e1.3 cm\u003c\/strong\u003e as a secondary outcome (the primary endpoint was curvature reduction). Nikoobakht and colleagues (\u003cem\u003eJournal of Sexual Medicine\u003c\/em\u003e, 2011, PMID 20102448) studied 23 men presenting with clinically reduced penile length, using a different traction device for three months; mean gains of \u003cstrong\u003e1.7 cm\u003c\/strong\u003e were recorded in both flaccid and stretched states (P\u0026lt;0.05). Both studies used specific clinical populations and different devices; they represent the best available non-surgical proxy data for how traction may affect penile length.\u003c\/p\u003e\n\u003cp\u003eThe most rigorous randomized evidence comes from a post-surgical context. Toussi and colleagues published a single-center randomized controlled trial in the \u003cem\u003eJournal of Urology\u003c\/em\u003e (2021, PMID 34060339) enrolling 82 men after radical prostatectomy, using the RestoreX penile traction device at 30–90 minutes per day. At 6 months, the traction group preserved and recovered significantly more penile length than controls — \u003cstrong\u003e+1.6 cm versus +0.3 cm (p\u0026lt;0.01)\u003c\/strong\u003e. This study documents post-surgical length recovery after prostatectomy, not enlargement in healthy men; 87% of participants said they would repeat the therapy and 93% would recommend it to others. Across the traction literature, reported adverse events have been mild and temporary, with \u003cstrong\u003eno serious adverse events reported\u003c\/strong\u003e. These outcomes describe the therapy as studied in specific clinical settings; individual results with any at-home device vary, and the SizeGenetics™ Ultimate System is designed to support — not guarantee — gradual change.\u003c\/p\u003e\n\u003cp\u003eA note on girth: the measured outcomes across the \u003ca href=\"\/en-au\/blogs\/penile-traction-therapy\"\u003epenile traction therapy\u003c\/a\u003e literature are predominantly \u003cstrong\u003elength\u003c\/strong\u003e gains — the cited studies tracked length, and the axial collagen realignment that Chung \u0026amp; Brock described aligns tissue along the line of pull. Some users and parts of the literature report modest girth change as well, but girth is far less consistently measured than length. It is best treated as a possible, variable secondary outcome rather than a guaranteed one, and individual results vary.\u003c\/p\u003e\n\u003ch2\u003eWhy choose the SizeGenetics Ultimate System\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eThe most complete kit\u003c\/strong\u003e — the only SizeGenetics configuration that ships with the full comfort set, the complete elongation-bar range, premium leather storage and a structured training schedule together.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eFDA-registered and CE-certified medical device\u003c\/strong\u003e — engineered to a medical standard, not a novelty gadget.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eStraight, single-axis traction\u003c\/strong\u003e — steady one-direction longitudinal tension, the mechanism studied across the penile-traction literature.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eComfort built for long wear\u003c\/strong\u003e — dual-function front piece, silicone tube, comfort strap, protection pad, no-slip fittings and a 3M advanced comfort plaster for the multi-hour sessions the protocol calls for.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eAdjustable tension force\u003c\/strong\u003e — start gentle at ~900 g and build to a maximum of 2,800 g (≈27 N) via the full elongation-bar set, as comfort allows.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eGuided start\u003c\/strong\u003e — an included progressive 6-week Slow Start-Up program removes the guesswork for first-time users.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eDiscreet \u0026amp; at-home\u003c\/strong\u003e — no clinic and no surgery; the whole protocol is private.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eBacked by the brand\u003c\/strong\u003e — over 1,000,000 units sold since 1994, a full 1-year warranty and a money-back confidence guarantee.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eHow the Ultimate System compares to the other SizeGenetics kits\u003c\/h2\u003e\n\u003cp\u003eEvery SizeGenetics edition is the same FDA-registered and CE-certified penile traction device — the traction device itself is identical, and the editions differ only in what is packaged around it. The comfort fittings and elongation bars are shared across the range, so the choice is about how complete a kit you want, not about a different device or a different mechanism.\u003c\/p\u003e\n\u003ctable\u003e\n \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSizeGenetics edition\u003c\/th\u003e\n\u003cth\u003eWhat it adds beyond the device\u003c\/th\u003e\n\u003cth\u003eBest for\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n \u003ctbody\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/en-au\/products\/value-edition\"\u003eValue edition\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eThe device and core fittings only\u003c\/td\u003e\n\u003ctd\u003eThe essentials at the lowest entry point\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/en-au\/products\/comfort-package\"\u003eComfort edition\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eAdds the comfort-wear set for longer sessions\u003c\/td\u003e\n\u003ctd\u003eMore comfortable multi-hour daily wear\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/en-au\/products\/curvature-home-treatment\"\u003eCurvature \u0026amp; Peyronie's edition\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003ePairs the device with curvature-specific guidance\u003c\/td\u003e\n\u003ctd\u003eMen managing penile curvature\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eUltimate System \u003cem\u003e(this kit)\u003c\/em\u003e\n\u003c\/td\u003e\n\u003ctd\u003eFull comfort set, complete elongation-bar range, premium leather storage and the 6-week training schedule\u003c\/td\u003e\n\u003ctd\u003eThe whole protocol in one box\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eThe SizeGenetics™ Ultimate System is the most complete configuration, which is why it sits at the top of the range at $299.95 — a first-time user gets every part of the protocol in one purchase rather than buying accessories piecemeal later.\u003c\/p\u003e\n\n\u003ch2\u003eWhat's in the box\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e1 × SizeGenetics™ traction device (main unit)\u003c\/li\u003e\n \u003cli\u003e1 × Luxury leather storage case\u003c\/li\u003e\n \u003cli\u003e1 × Travel case\u003c\/li\u003e\n \u003cli\u003e1 × Dual-function front piece\u003c\/li\u003e\n \u003cli\u003e1 × Silicone tube\u003c\/li\u003e\n \u003cli\u003e1 × Comfort strap\u003c\/li\u003e\n \u003cli\u003e1 × Protection pad\u003c\/li\u003e\n \u003cli\u003eFull elongation-bar set: 2 × 0.5 in \/ 1.25 cm · 2 × 1 in \/ 2.5 cm · 4 × 2 in \/ 5 cm\u003c\/li\u003e\n \u003cli\u003e1 × No-Slip Protech\u003c\/li\u003e\n \u003cli\u003e1 × 3M Advanced Comfort Plaster\u003c\/li\u003e\n \u003cli\u003e1 × Accellerate Cream Moisturizer\u003c\/li\u003e\n \u003cli\u003e1 × Accellerate Traction Talcum Powder\u003c\/li\u003e\n \u003cli\u003e1 × SizeGenetics™ Quick Start Guide\u003c\/li\u003e\n \u003cli\u003e1-year warranty + money-back confidence guarantee\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eIncluded: 6-week Slow Start-Up training program\u003c\/h2\u003e\n\u003cp\u003eEvery Ultimate System includes the SizeGenetics™ Slow Start-Up Schedule, a progressive 6-week program that begins with low tension and short sessions, then gradually increases as the body adapts. The schedule is built around the clinically studied protocol of roughly 4–6 hours of daily wear, so a new user can build toward full sessions safely rather than starting at maximum tension on day one.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is a penile traction device kit?\u003c\/strong\u003e It is the complete set of parts needed to run penile traction therapy at home — the traction device plus the comfort fittings, elongation bars and wear guidance — sold as one package rather than bought piece by piece. The SizeGenetics™ Ultimate System is the most complete version of that package, so a first-time user is not left sourcing missing accessories later.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow does the SizeGenetics Ultimate System work?\u003c\/strong\u003e In practice you set the tension with the elongation bars, fit the device comfortably, and wear it for a few hours a day, building up time using the included schedule. It holds the shaft under a steady, straight one-direction stretch that, over months of consistent wear, is designed to support gradual tissue change — the underlying mechanotransduction science is explained in the \"how penile traction therapy works\" section above.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes a penile traction device actually work?\u003c\/strong\u003e The clinical literature on penile traction therapy reports measurable outcomes, with the strongest evidence in curvature correction and post-surgical length recovery. For length in non-surgical settings, Gontero et al. (2009, PMID 19138361) reported a mean stretched-length increase of 1.3 cm in Peyronie's disease patients as a secondary finding, and Nikoobakht et al. (2011, PMID 20102448) recorded 1.7 cm gains in men with clinically reduced penile length over three months. A randomized controlled trial by Toussi et al. (J Urol, 2021, PMID 34060339) found +1.6 cm length recovery versus +0.3 cm in controls post-prostatectomy, using the RestoreX device. These figures describe the therapy as studied in specific clinical populations; individual results vary, and consistent daily wear over the study period is what was required.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre the results retained?\u003c\/strong\u003e In the published studies, the length measured at the end of the wear period was recorded at follow-up rather than reverting once the device came off, which is why traction is studied as a gradual tissue-remodeling approach rather than a temporary one. The evidence base is still limited and individual results vary, so SizeGenetics does not describe gains as permanent — only as the outcomes reported in clinical settings under sustained use.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow long until I see changes, and how long should I wear it?\u003c\/strong\u003e Penile traction therapy is gradual. Published studies in non-surgical populations used roughly 4–6 hours of daily wear over 3–6 months (Gontero 2009, PMID 19138361; Nikoobakht 2011, PMID 20102448), with length gains of 1.3–1.7 cm reported in those clinical settings. The included 6-week Slow Start-Up program eases you toward those daily wear times. Individual results vary.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow much tension should I use?\u003c\/strong\u003e Start gentle — around 900 grams — and build toward a maximum of 2,800 grams (≈27 N) by adding elongation bars from the included set, only as comfort allows. Worn correctly it should feel like a firm stretch, never pain.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs it safe, and does it hurt?\u003c\/strong\u003e Worn at the recommended tension it should feel like a firm, comfortable stretch. Across the clinical literature, penile traction therapy reported only mild, temporary effects and no serious adverse events. Stop and consult a healthcare professional if you experience pain, numbness or discoloration.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan it help with penile curvature?\u003c\/strong\u003e The straight longitudinal traction the device applies may support men managing penile curvature associated with Peyronie's disease; the purpose-built \u003ca href=\"\/en-au\/products\/curvature-home-treatment\"\u003eSizeGenetics Curvature \u0026amp; Peyronie's Home Treatment edition\u003c\/a\u003e packages the same device with curvature-specific guidance. Curvature that is severe or painful, or active (acute-phase) Peyronie's, warrants a urologist's assessment before starting traction.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat makes the Ultimate System different from the other SizeGenetics kits?\u003c\/strong\u003e Configuration, not mechanism — every edition uses the identical device. The Ultimate System is simply the most complete box: it adds the full comfort set, the complete elongation-bar range, premium storage and the 6-week schedule, where the Value and Comfort editions cover narrower configurations (see the comparison table above).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWho is it for?\u003c\/strong\u003e The SizeGenetics™ Ultimate System is for adult men 18+ who want to apply penile traction therapy privately at home. It is intended to apply straight longitudinal traction only. Consult a healthcare professional before use if you have a medical condition.\u003c\/p\u003e\n\n\u003cp class=\"sg-byline\"\u003eWritten by the \u003ca href=\"\/en-au\/pages\/about-us\"\u003eDanamedic Medical Content Team\u003c\/a\u003e · Medically reviewed by \u003ca href=\"\/en-au\/pages\/about-us#dr-siana\"\u003e\u003cstrong\u003eDr. Jørn Ege Siana\u003c\/strong\u003e\u003c\/a\u003e, Plastic Surgeon \u0026amp; Medical Advisor, Copenhagen — co-inventor of the original penile traction device (1994).\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eSizeGenetics is an FDA-registered and CE-certified medical device for use by adult men 18+. This device is intended to apply straight longitudinal traction only. Individual results vary. Consult a healthcare professional before use if you have a medical condition.\u003c\/em\u003e\u003c\/p\u003e\n\u003c!-- sg-rich-schema --\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/sizegenetics.com\/products\/ultimate-system#webpage\",\"url\":\"https:\/\/sizegenetics.com\/products\/ultimate-system\",\"name\":\"Penile Traction Device Kit — SizeGenetics® Ultimate System (FDA-Registered \u0026 CE-Certified)\",\"inLanguage\":\"en\",\"lastReviewed\":\"2026-06-09\",\"reviewedBy\":{\"@id\":\"https:\/\/sizegenetics.com\/pages\/about-us#dr-siana\"},\"citation\":[{\"@id\":\"https:\/\/sizegenetics.com\/products\/ultimate-system#study-gontero-2009\"},{\"@id\":\"https:\/\/sizegenetics.com\/products\/ultimate-system#study-nikoobakht-2011\"},{\"@id\":\"https:\/\/sizegenetics.com\/products\/ultimate-system#study-toussi-2021\"},{\"@id\":\"https:\/\/sizegenetics.com\/products\/ultimate-system#study-chung-brock-2013\"}]},{\"@type\":\"Person\",\"@id\":\"https:\/\/sizegenetics.com\/pages\/about-us#dr-siana\",\"name\":\"Jørn Ege Siana\",\"honorificPrefix\":\"Dr.\",\"jobTitle\":\"Plastic Surgeon \u0026 Medical Advisor\",\"worksFor\":{\"@id\":\"https:\/\/sizegenetics.com\/#organization\"},\"knowsAbout\":[\"Penile Traction Therapy\",\"Plastic Surgery\",\"Tissue Expansion\",\"Peyronie's Disease Treatment\",\"Medical Device Development\"],\"description\":\"Co-inventor of the original penile traction device (1994). Plastic surgeon and medical advisor, Copenhagen.\",\"url\":\"https:\/\/sizegenetics.com\/pages\/about-us#dr-siana\"},{\"@type\":\"FAQPage\",\"@id\":\"https:\/\/sizegenetics.com\/products\/ultimate-system#faq\",\"isPartOf\":{\"@id\":\"https:\/\/sizegenetics.com\/products\/ultimate-system#webpage\"},\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What is a penile traction device kit?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It is the complete set of parts needed to run penile traction therapy at home — the traction device plus the comfort fittings, elongation bars and wear guidance — sold as one package rather than bought piece by piece. The SizeGenetics™ Ultimate System is the most complete version of that package, so a first-time user is not left sourcing missing accessories later.\"}},{\"@type\":\"Question\",\"name\":\"How does the SizeGenetics Ultimate System work?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"In practice you set the tension with the elongation bars, fit the device comfortably, and wear it for a few hours a day, building up time using the included schedule. It holds the shaft under a steady, straight one-direction stretch that, over months of consistent wear, is designed to support gradual tissue change — the underlying mechanotransduction science is explained in the \\\"how penile traction therapy works\\\" section above.\"}},{\"@type\":\"Question\",\"name\":\"Does a penile traction device actually work?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The clinical literature on penile traction therapy reports measurable outcomes, with the strongest evidence in curvature correction and post-surgical length recovery. For length in non-surgical settings, Gontero et al. (2009, PMID 19138361) reported a mean stretched-length increase of 1.3 cm in Peyronie's disease patients as a secondary finding, and Nikoobakht et al. (2011, PMID 20102448) recorded 1.7 cm gains in men with clinically reduced penile length over three months. A randomized controlled trial by Toussi et al. (J Urol, 2021, PMID 34060339) found +1.6 cm length recovery versus +0.3 cm in controls post-prostatectomy, using the RestoreX device. These figures describe the therapy as studied in specific clinical populations; individual results vary, and consistent daily wear over the study period is what was required.\"}},{\"@type\":\"Question\",\"name\":\"Are the results retained?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"In the published studies, the length measured at the end of the wear period was recorded at follow-up rather than reverting once the device came off, which is why traction is studied as a gradual tissue-remodeling approach rather than a temporary one. The evidence base is still limited and individual results vary, so SizeGenetics does not describe gains as permanent — only as the outcomes reported in clinical settings under sustained use.\"}},{\"@type\":\"Question\",\"name\":\"How long until I see changes, and how long should I wear it?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Penile traction therapy is gradual. Published studies in non-surgical populations used roughly 4–6 hours of daily wear over 3–6 months (Gontero 2009, PMID 19138361; Nikoobakht 2011, PMID 20102448), with length gains of 1.3–1.7 cm reported in those clinical settings. The included 6-week Slow Start-Up program eases you toward those daily wear times. Individual results vary.\"}},{\"@type\":\"Question\",\"name\":\"How much tension should I use?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Start gentle — around 900 grams — and build toward a maximum of 2,800 grams (≈27 N) by adding elongation bars from the included set, only as comfort allows. Worn correctly it should feel like a firm stretch, never pain.\"}},{\"@type\":\"Question\",\"name\":\"Is it safe, and does it hurt?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Worn at the recommended tension it should feel like a firm, comfortable stretch. Across the clinical literature, penile traction therapy reported only mild, temporary effects and no serious adverse events. Stop and consult a healthcare professional if you experience pain, numbness or discoloration.\"}},{\"@type\":\"Question\",\"name\":\"Can it help with penile curvature?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The straight longitudinal traction the device applies may support men managing penile curvature associated with Peyronie's disease; the purpose-built SizeGenetics Curvature \u0026 Peyronie's Home Treatment edition packages the same device with curvature-specific guidance. Curvature that is severe or painful, or active (acute-phase) Peyronie's, warrants a urologist's assessment before starting traction.\"}},{\"@type\":\"Question\",\"name\":\"What makes the Ultimate System different from the other SizeGenetics kits?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Configuration, not mechanism — every edition uses the identical device. The Ultimate System is simply the most complete box: it adds the full comfort set, the complete elongation-bar range, premium storage and the 6-week schedule, where the Value and Comfort editions cover narrower configurations (see the comparison table above).\"}},{\"@type\":\"Question\",\"name\":\"Who is it for?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The SizeGenetics™ Ultimate System is for adult men 18+ who want to apply penile traction therapy privately at home. It is intended to apply straight longitudinal traction only. Consult a healthcare professional before use if you have a medical condition.\"}}]},{\"@type\":\"ItemList\",\"@id\":\"https:\/\/sizegenetics.com\/products\/ultimate-system#box-contents\",\"name\":\"SizeGenetics Ultimate System — What's in the box\",\"numberOfItems\":14,\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"SizeGenetics™ traction device (main unit)\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Luxury leather storage case\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Travel case\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Dual-function front piece\"},{\"@type\":\"ListItem\",\"position\":5,\"name\":\"Silicone tube\"},{\"@type\":\"ListItem\",\"position\":6,\"name\":\"Comfort strap\"},{\"@type\":\"ListItem\",\"position\":7,\"name\":\"Protection pad\"},{\"@type\":\"ListItem\",\"position\":8,\"name\":\"Full elongation-bar set: 2 × 0.5 in \/ 1.25 cm · 2 × 1 in \/ 2.5 cm · 4 × 2 in \/ 5 cm\"},{\"@type\":\"ListItem\",\"position\":9,\"name\":\"No-Slip Protech\"},{\"@type\":\"ListItem\",\"position\":10,\"name\":\"3M Advanced Comfort Plaster\"},{\"@type\":\"ListItem\",\"position\":11,\"name\":\"Accellerate Cream Moisturizer\"},{\"@type\":\"ListItem\",\"position\":12,\"name\":\"Accellerate Traction Talcum Powder\"},{\"@type\":\"ListItem\",\"position\":13,\"name\":\"SizeGenetics™ Quick Start Guide\"},{\"@type\":\"ListItem\",\"position\":14,\"name\":\"1-year warranty + money-back confidence guarantee\"}]},{\"@type\":\"HowTo\",\"@id\":\"https:\/\/sizegenetics.com\/products\/ultimate-system#howto\",\"isPartOf\":{\"@id\":\"https:\/\/sizegenetics.com\/products\/ultimate-system#webpage\"},\"name\":\"SizeGenetics 6-Week Slow Start-Up Schedule\",\"description\":\"A progressive 6-week wearing schedule included with every Ultimate System. It begins with low tension and short sessions, then gradually increases as the body adapts, building toward the clinically studied protocol of roughly 4–6 hours of daily wear — so a new user builds up safely rather than starting at maximum tension on day one.\",\"totalTime\":\"P6W\",\"tool\":[{\"@type\":\"HowToTool\",\"name\":\"SizeGenetics traction device (main unit)\"},{\"@type\":\"HowToTool\",\"name\":\"Full elongation-bar set\"},{\"@type\":\"HowToTool\",\"name\":\"Comfort accessories (comfort strap, silicone tube, protection pad, No-Slip Protech, 3M Advanced Comfort Plaster)\"}],\"step\":[{\"@type\":\"HowToStep\",\"position\":1,\"name\":\"Week 1 — Orientation and low tension\",\"text\":\"Fit the device at the lowest tension setting (around 900 g) and wear it in short, comfortable sessions. Focus on learning correct fit and how to apply the comfort accessories. Stop immediately if you feel pain, numbness or discoloration.\"},{\"@type\":\"HowToStep\",\"position\":2,\"name\":\"Week 2 — Extend daily wear time\",\"text\":\"Keep tension low and gradually increase your daily wear time as comfort improves. Consistent, comfortable sessions matter more than tension at this stage.\"},{\"@type\":\"HowToStep\",\"position\":3,\"name\":\"Week 3 — Begin adding tension\",\"text\":\"Add an elongation bar to raise tension modestly, only as comfort allows, while keeping each session comfortable. Take a rest day if you need one.\"},{\"@type\":\"HowToStep\",\"position\":4,\"name\":\"Week 4 — Build toward the studied wear window\",\"text\":\"Continue adding elongation bars as comfort allows and build your daily wear time toward the 4–6 hour range used in the published clinical protocol. Only increase once the previous level feels fully comfortable.\"},{\"@type\":\"HowToStep\",\"position\":5,\"name\":\"Week 5 — Consolidate longer sessions\",\"text\":\"Maintain longer daily sessions within the 4–6 hour window at a tension that stays comfortable. By now daily wear should feel routine; fine-tune the elongation-bar combination for the most comfortable fit.\"},{\"@type\":\"HowToStep\",\"position\":6,\"name\":\"Week 6 — Full protocol\",\"text\":\"Build toward a maximum of up to 2,800 g (≈27 N) using the full elongation-bar set, with 4–6 hours of daily wear, only as comfort allows. Maintain this protocol consistently over 3–6 months — the duration used in published clinical studies — for the device to support gradual tissue adaptation. Individual results vary.\"}]},{\"@type\":\"ScholarlyArticle\",\"@id\":\"https:\/\/sizegenetics.com\/products\/ultimate-system#study-gontero-2009\",\"name\":\"A pilot phase-II prospective study to test the efficacy and tolerability of a penile-extender device in the treatment of short penis\",\"author\":[{\"@type\":\"Person\",\"name\":\"Gontero P\"}],\"datePublished\":\"2009\",\"isPartOf\":{\"@type\":\"Periodical\",\"name\":\"Journal of Sexual Medicine\"},\"description\":\"Prospective study reporting a mean stretched penile length increase of 1.3 cm in patients using a penile traction device for approximately 5–6 hours per day over six months.\",\"sameAs\":\"https:\/\/pubmed.ncbi.nlm.nih.gov\/19138361\/\",\"identifier\":{\"@type\":\"PropertyValue\",\"propertyID\":\"PMID\",\"value\":\"19138361\"}},{\"@type\":\"ScholarlyArticle\",\"@id\":\"https:\/\/sizegenetics.com\/products\/ultimate-system#study-nikoobakht-2011\",\"name\":\"Effect of penile-extender device in increasing penile size in men with shortened penis\",\"author\":[{\"@type\":\"Person\",\"name\":\"Nikoobakht M\"}],\"datePublished\":\"2011\",\"isPartOf\":{\"@type\":\"Periodical\",\"name\":\"Journal of Sexual Medicine\"},\"description\":\"Study of 23 men with clinically reduced penile length recording mean gains of 1.7 cm in both flaccid and stretched length after three months of traction therapy (P\u003c0.05).\",\"sameAs\":\"https:\/\/pubmed.ncbi.nlm.nih.gov\/20102448\/\",\"identifier\":{\"@type\":\"PropertyValue\",\"propertyID\":\"PMID\",\"value\":\"20102448\"}},{\"@type\":\"ScholarlyArticle\",\"@id\":\"https:\/\/sizegenetics.com\/products\/ultimate-system#study-toussi-2021\",\"name\":\"Efficacy of a novel penile traction device in improving penile length and erectile function post prostatectomy: results from a single-center randomized controlled trial\",\"author\":[{\"@type\":\"Person\",\"name\":\"Toussi A\"}],\"datePublished\":\"2021\",\"isPartOf\":{\"@type\":\"Periodical\",\"name\":\"Journal of Urology\"},\"description\":\"Single-center randomized controlled trial of 82 men after radical prostatectomy using the RestoreX penile traction device 30–90 minutes per day; at six months the traction group recovered +1.6 cm of penile length versus +0.3 cm in controls (p\u003c0.01).\",\"sameAs\":\"https:\/\/pubmed.ncbi.nlm.nih.gov\/34060339\/\",\"identifier\":{\"@type\":\"PropertyValue\",\"propertyID\":\"PMID\",\"value\":\"34060339\"}},{\"@type\":\"ScholarlyArticle\",\"@id\":\"https:\/\/sizegenetics.com\/products\/ultimate-system#study-chung-brock-2013\",\"name\":\"Penile traction therapy and Peyronie's disease: a state of the art review of the therapy\",\"author\":[{\"@type\":\"Person\",\"name\":\"Chung E\"},{\"@type\":\"Person\",\"name\":\"Brock G\"}],\"datePublished\":\"2013\",\"isPartOf\":{\"@type\":\"Periodical\",\"name\":\"Therapeutic Advances in Urology\"},\"description\":\"Review documenting that mechanical traction drives reorganization and remodelling of collagen fibres into uniform, densely packed fibrils aligned to the axis of mechanical strain — the mechanotransduction mechanism underlying penile traction therapy.\"}]}\u003c\/script\u003e\n\u003c!-- \/sg-rich-schema --\u003e","brand":"SizeGenetics","offers":[{"title":"Default Title","offer_id":50024090861908,"sku":"113","price":299.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/7401\/3268\/files\/Ultimate-System.webp?v=1727689680"}],"url":"https:\/\/sizegenetics.com\/en-au\/collections\/bestseller.oembed","provider":"Sizegenetics.com","version":"1.0","type":"link"}