Penis Traction (Extender) Devices

Over the last decade, different non-surgical penis enlargement products and ideas seem to have come in waves. The first big thing was exercise in the late 1990’s, followed by ‘miracle’ penis pills a couple of years later. Now that we’re firmly into the new millennium another massive shift has taken place and the penis traction device is hailed as the new king.

There’s nothing new in the claims being made though – the traction device is touted as the new revolutionary way to turn your baby carrot into a fully fledged cucumber -worthy of 1st Place in any respectable Best Home Grown Vegetable competition. Claims we’ve all heard before.

Unlike its predecessors though, the penis traction device has one ace up its sleeve – a certain degree of medical backing.

The Origins…

You see, penis traction devices were initially developed as a post operative aid for men who had undergone penis lengthening surgery. Because of the dire results the early guinea pigs of this surgical procedure experienced, various urologists and plastic surgeons put their heads together to try to come up with a solution that would produce acceptable long term gains.

And what they came up with was…the penis traction device.

The major problem with the surgical lengthening procedure was that whilst in theory it should’ve lead to permanent penis lengthening, in practice it didn’t. By cutting the ligaments which harness the penis to the pubic bone, surgery in theory allowed the part of the penile shaft that usually hides away from view inside the body to shift forward and say ‘hello world’.

In practice though, it was soon found that this little magic act didn’t work quite as well as it had been hoped; and in reality the rabbit needed a little bit more encouragement to leave the safe confines of his warren.

To achieve this, patients were instructed to embrace the penile traction device as if their lives depended upon it. By consistently using traction for around 8 hours a day over the course of 6 -12 months following their operation, modest length gains could be realized. By ‘modest’ I mean gains of about an inch in flaccid length and maybe ½ inch in erect length.

The reason traction proved so vital to the success of the lengthening operation was two fold. Without constant stretching, firstly the ligaments which had been severed to allow length gains to be achieved, would simply reattach themselves to the pubic bone during the healing process. Secondly, scar tissue would eventually form in the incision which had been made to cut the ligaments. The problem with scar tissue is that it is highly inelastic and has a serious habit of shrinking. The long term effect of which, was that this scar tissue would in fact, have the counter productive effect of actually pulling the penis back into the body.

Traction was found to counteract these problems to a degree at least, and therefore provided far improved chances of long-term success.

Enter The New Era…

Of course, with the development of the medical penis traction device, it was inevitable that someone sooner or later would strap one of these contraptions to their dick without first having had surgery.

The emerging argument was simply that if traction was to a greater degree responsible for the gains produced after surgery, then why bother going through the ordeal of surgery at all?

A valid point and one which spawned its own research into the effectiveness of traction as a stand alone method of penis enlargement.

Jørn Ege Siana, MD, a Danish plastic surgeon and inventor of the Jes-Extender (a device which today is pretty much the gold standard by which all other penis traction devices are judged) undertook his own research to answer this question.

His study, entitled ‘Tractive Elongation of the Penis by Means of Stretching’ was published in 1998 and charted the progress of 18 healthy volunteers who had happily clamped their nobs into the Jes-Extender for 12 hours a day, seven days a week over a period of 24 weeks.

The findings of this study were more than a little bit surprising. After the first 8 weeks, these intrepid volunteers had on average stretched the length of their erect dicks by an impressive 17 percent and by the final 24th week, by an even more impressive 29 percent. In real terms, these percentages equated to an average gain of 2.8 cm (just over an inch) in erect penis length and 1.9 cm (0.7 inches) in flaccid length.

It’s hard to know who would have been happier with the results of the clinical trial. The lucky volunteers who had packed on an extra inch in erect length in just six months or good old Jørn M.D. who went on to sell a shed load of Jes Extenders and has now undoubtedly retired an extremely wealthy man.

The fact is, this clinical trial recorded results which are better than those typically achieved through penis lengthening surgery, and opened the flood gates to the use of penis traction devices as a viable method of non-surgical enlargement.

If you carefully read my regurgitation of Dr. Siana’s study though you may have noticed one monumental drawback – the subjects wore the traction device for 12 hours a day, everyday for six months to realise these impressive gains.

So instead of the question being, ‘Do penis traction devices work?’ the answer to which is a resounding yes, the question now is, ‘Is it practical to strap your todger into a 21st century, medically engineered cock vice for 12 hours a day for the next six months?’

Practicality Issues…

No matter what the manufacturers may say, believe me it’s no mean feat to go about your daily business with a clump of metal stuffed down your pants, exerting the same sort of tension as if you had a small monkey clinging for its life from the end of your prick.

That’s not to say it’s a mission impossible only worthy of Ethan Hunt, but it’s not quite as simple as some would have you believe either. There’s a bit of a learning curve before things start to fall into place.

Yes, medically engineered penis traction devices are designed to be safely worn for long periods at a time and are designed to fit inconspicuously under loose clothing, but the practicality of the matter can be something different.

I remember finding out first hand the intricacies involved in strapping my nob into a Pro Extender (the U.S. marketed Jes-Extender) for the first time. In fact, it seemed like you needed three hands to get the thing effectively in place. One hand to press the device against your body, another to pull your penis through and yet another (or someone else’s) to pull down the silicone loop to hold the head of your penis firmly to the device.

Until you’ve mastered the art of securing the device you can also expect your penis to slip out pretty frequently. I’m uncircumcised, and with the extra loose skin, it seemed near impossible in the beginning to get the device to stay on for more than 15 minutes at a time. So as you can imagine I wasn’t in any hurry to leave the safe confines of my house with my new dick stretching adornment in place.

In all fairness, these are all just teething problems and after some initial practice things do become easier.

I would say though, that it would take a massive amount of dedication to keep your manhood secured for the 12 hours a day, as was undertaken by the subjects in the trial mentioned above.

There are just too many times when the chances of the device falling off (for example when you’re at work, doing the shopping etc.) are too great to take the risk of putting it on in the first place. Maybe I just have an irrational fear of embarrassment, but I can think of few things worse than having your dick stretcher clatter to the floor in the middle of the local supermarket and having some helpful shop assistant bend down and pick it up for you.

You ay think I’m being overly negative here….that’s not my intention. But I think it’s important that if you’re considering using one of these devices, that you’re not under any illusions that it’s all plain sailing.

The Best Approach…

In the first few weeks of use I think it’s safe to say that it’s better just to wear your new friend in the safe confines of your own home. Better still, it’s probably a good idea to put aside some time for quality stretching time each day.

The fortunate thing is that the effects of penis traction are known to be cumulative. In other words, what’s important is not so much the length of time you wear the device each day but instead the total number of hours worn over the entire course of treatment.

If you can devote a couple of hours a night reclining to front of the TV or lying in bed with your device on, then you’ll be achieving quality stretching time, which although won’t produce gains as quickly, will nevertheless have a positive long-term effect.

As you become more accustomed to the device and the physical activities that you can and can’t do whilst wearing it, you’ll build up the knowledge and confidence to increase your quality wearing time – you just have to remember that Rome wasn’t built in a day. What you must ensure however, is consistent use. Make sure that you keep the determination to wear the device on a daily basis, even if it’s only for a couple of hours a day. Nothing will hinder progress more than a half arsed attitude.

Devices such as the Jes Extender can be worn under clothing – I’ve tried this first hand. Of course it’s better to do so under some loose fitting pants. Personally I have a penchant for Levi 501’s, and although wearing the device under these doesn’t scream out, ‘I’m wearing a dick stretcher’ there is nevertheless a distinct bulge. After years of self abuse through penis exercises, I have a pretty lengthy flaccid member, and funnily enough, the bulge I see is the shaft of my todger being stretched half way down my leg – not the device itself. So if you want flout what you’ve got, by all means stick a pair of tight fitting jeans on. But for discreet, inconspicuous wear, make sure you stick to a pair of loose chinos.

Safety Issues…

Those who either out of ignorance or a vested interest in tarnishing the effectiveness of penis traction often point to serious safety issues concerning their use. These usually revolve around the idea that stretching devices constrict the blood flow to the head of the penis, or alternatively, place pressure on the dorsal nerve – both of which could lead to numbness, tissue damage or potentially even a loss of erectile function.

I have never heard of a case where this has happened through the use of a medically designed traction device.

This sort of scaremongering tends to be based on examples of injuries which have been sustained through the use of home made devices. Not surprisingly, men have tried numerous things over the years in an attempt to effectively stretch their penises – a good example of which is hanging gym weights pendulum style with the help of a piece of string tied in a noose behind the penis head.

This type of indiscriminate hanging, using both weights which are too heavy for the purpose and unsuitable attachment methods are obviously likely to lead to the problems mentioned above.

In contrast, devices such as the Jes Extender use precisely controlled low levels of traction to achieve their aims. In addition, they are secured to the penis through the use of medical grade soft silicone tubing, which doesn’t place the same level of pressure on the penis.
Of course a little bit of common sense still needs to be applied to ensure safe usage. For example it’s a good idea to regularly check that the head of your penis isn’t overly cold or discoloured (signs of reduced circulation). Likewise, any hint of pain is a sure indicator that your penis needs a breather.

With the huge numbers of traction devices sold, no reported cases of injury, my own personal experiences, together with medical approval stating that they are fit for the purpose, there’s no doubt in my mind that these devices are entirely safe when used correctly.

How Penis Extenders Work

Penis traction devices (also referred to as penis extenders or stretchers) work through a very simple principle: they gradually stretch the penis through applied tension.

With consistent use over a number of months, clinical studies have reported average gains in erect length of around an inch. Contrary to popular belief, the use of such a device also promotes slight gains in penis girth – although these are never as pronounced as length gains.

Although the concept is nothing new and is in fact very simple, modern day medical traction devices are precision engineered to produce very consistent levels of tension for both safe usage and optimal growth.

Below I’ve outlined their basic workings using my own Jes Extender to illustrate:

The Mechanics of a Medical Traction Device

The Mechanics of a Medical Traction Device

  1. The base ring fits around the base of the penis and is positioned against the body. Note the recess at the bottom of the ring which is intended to ensure that the urethra isn’t compressed when worn.
  2. The level of traction applied to the penis is precisely controlled by the spring loaded pistons. The Jes Extender traction device offers a traction range of between 900g and 1.5kg.
  3. By turning the tension adjustment screws anti-clockwise (labelled 3. on the diagram), the springs within the pistons are compressed, which in turn exerts additional tension on the penis. The level of tension applied can be accurately gauged and adjusted by looking at the markings on the pistons. If the piston is compressed up to the second marker for example, you know you are precisely applying 1200 grams (1.2kg) of stretching force to the penile shaft.
  4. The elongation bars that run down either side of the penile shaft. As the penis gradually stretches over time, additional sets of 1 or 2 inch bars can be added.
  5. The top end of the penile shaft rests comfortably in the plastic support.
  6. The silicone loop fastens just behind the head of the penis. The mushroom shape of the head of the penis should prevent the penis from slipping out of the loop when tension is applied. For extra comfort (particularly in the first few weeks of use) foam pads are provided, which offer extra padding between the penis and the silicone loop.


Popular Traction Devices

You may well have noticed the numerous competing penis traction devices on the market, all of which claim to be the most effective and built to the highest quality.

The fact of the matter is that any good medical traction device will produce similar results – and these results will be due to your own commitment and determination rather than your choice of a particular device.

Having said that, the surprising fact is that there isn’t a great deal of choice out there. Many of the leading brands of traction devices which you’ve no doubt come across such as Size Genetics and Pro Extender for example, actually offer the same device in their packages – the Jes Extender.

The Jes Extender, developed by a Danish plastic surgeon in 1994, has in many ways stood the test of time as a ground breaking device that gave rise to the popularity of non-surgical penis traction. This was the device used in the medical study ‘Tractive Elongation of the Penis by Means of Stretching’ published in 1998 which reported average erect length gains of just over an inch for the lucky participants.

In fact, the Jes Extender is one of only two extender devices to have gained certification as a Type 1 Medical Device, fit for the purpose. As the original it is generally regarded as the gold standard by which all other extender devices are judged.

Due to the reputation of the Jes Extender, several companies simply market this device under different brand names. If you intend to buy a penis traction device from one of these resellers, the most important thing is to carefully compare prices for the core device; as ultimately you’ll be buying the same product – simply repackaged under a different brand.

You’ll find that a lot of these resellers offer the Jes Extender as part of an overall package – which amongst other things may include herbal ‘penis pill’ supplements and exercise manuals. If these are of interest to you, then by all means base your decision on these extras. However, my personal opinion is that if you’re going to buy a traction device, the most important thing is the device itself and ultimately, getting it at the best price possible.

Regardless of the company you buy from though, one of the main drawbacks of the Jes Extender is that it tends to come with very limited spare parts; and as you’ll find out after using one for month after month, certain parts do tend to wear out and can be costly to replace.

The silicone tubing which is used to hold the head of the penis to the device for example, does wear out with extended usage and typically costs a hefty $20 excluding shipping to replace. The tension springs are another example of a conponent that will in all likelihood need replacing, given time. In addition the Jes Extender is only supplied with standard 1 and 2 inch length elongation bars. In my experience, it can be quite handy to have ½ inch elongation bars to achieve the perfect length fit.

Due to these issues there are also a couple of other high quality alternative products on the market which are worth considering, as they provide a more comprehensive range of spare parts whilst maintaining similar quality to the Jes Extender.

Below I’ve briefly outlined the more reputable and popular resellers of the Jes Extender as well as the limited number of high quality competing device. All are produced to exacting standards and are of comparable quality.

Website Links

Please don’t see the following as reviews – they are simply brief outlines to give you some idea of the origins of the most popular devices, an overview of their unique features and an idea of prices. All will be equally effective if used consitently and properly. You should carefully review the packages that each company has to offer and base your decision on long-term value, how complete the initial package is (e.g. do they supply enough elongation bars to accomodate long term gains, are parts that are likely to wear out included) and the convenience/cost of obtaining spare parts should you need them. Be weary of any review sites that make claims that one device will give you better gains than all the others – this is just marketing hype.

Jes Extender

The original device, sold as such. The device is available in Original, Silver and Gold editions. The ‘original’ version uses the standard silicone loop attachment, whereas the Silver and Gold editions substitute this for a new ‘comfort strap’ design. Developed to hold the penis more securely and comfortably to the device and to minimize slippage, this uses a one inch wide silicone strap instead of the original thin silicone tubing. The only other difference between the silver and gold editions is that one’s silver plated, the other gold – not really worth the additional investment. As with all Jes Extenders, the device is sold with limited spare parts regardless of the edition. Prices start at $299 for the original and $459 for the silver addition which includes the improved comfort strap.

Size Genetics

A well established resellers of the Jes Extender. All devices are supplied with the newly designed ‘comfort strap’ attachment as mentioned above. The device on its own is sold for around the $320 mark.

Pro Extender

Another popular Jes Extender reseller based in the U.S. The deluxe device alone, supplied with comfort strap costs $399 and comes in a rather swish looking metal case.

Note: Where ever you buy a Jes Extender from, you’ll also be offered a cardboard box option for around $100 less. This is the same device but has a couple of drawbacks. Firstly, the device is only supplied with enough elongation bars to support a stretched penis length of up to 7 inches – whereas the standard Jes Extender includes 9 inches worth of elongation bars. Secondly, this version is supplied without the newly designed support strap. Whilst this isn’t a monumental drawback, the new support straps do offer increased comfort and ease of use.

Fast Size

A highly respected CE certified medical penis extender, which is very similar in design to the Jes Extender. Developed and backed by various doctors, plastic surgeons and urologists, the Fast Size Extender is an extremely competitively priced product at $279. Included in the price tag are a good range of spare parts including a variety of elongation bar lengths, spare tension springs and silicone loops. At present, the Fast Size device uses the conventional silicone loop method of attachment, as opposed to the newly developed comfort strap method – which maybe it’s only drawback. Nevertheless, a competent and reasonably priced product of equivalent quality to the Jes Extender. The company are also currently offering an additional $60 discount, which makes the FastSize extender an even more attractive propositio


A company which offers an innovative range of traction devices, again closely based on the basic Jes Extender design. An interesting feature of X4Labs device is its ‘Hybrid Support System’ which allows for either the use of a silicone loop or comfort strap (or both in tandem) as a means of securely attaching the penis. The Gold Premium device, which retails for quite a hefty $495 also provides tension levels of up to 2.1kg (the maximum tension provided by the Jes Extender is 1.5kg) and comes with enough elongation bars to support penis length sizes of up to 15.5 inches! All devices in the X4Labs range – starting at $295 for the deluxe are supplied with a monumental number of spare parts. All in all, the X4Labs devices are undoubtedly of first rate quality and with numerous spare parts and innovative modifications, make an attractive choice.

In Summary…

Medical traction devices undoubtedly work as a stand alone method of penis enlargement, but again it’s no quick fix. If you’re prepared to commit yourself to sustained daily usage and can gradually build up wearing time over the months, you will gradually see results similar to those outlined in the medical study above.

Gains are cumulative and are proportionate to the total amount of wearing time. In the case of the subjects in Jørn Ege Siana, MD’s study, a total wearing time of around 2000 hours was required to produce an average gain of an inch in erect length. Over the course of a year, that would equate to wearing the device for around 5 ½ hours a day – a realistic and achievable daily wearing time if you’re serious about your desires.

Of course, the rate at which gains are produced will to a degree be determined by your own anatomical makeup and individual recovery processes. I read of one chap who with a total wearing time of just 55 hours spread out over 17 days, gained an additional 4 cm (1.6 inches) with the use of the Jes Extender. But I would think that this sort of rapid length gain is extremely rare. Therefore, before considering penis traction you should be prepared for the long haul.

Of course, the gains you do make don’t just appear all at once – they’re gradually produced. As such, you’re likely to find that you’re motivation increases the more progress you see being made.

If I was asked if I’d recommend the use of traction, I would say yes – but I’d also recommend doing so with a realistic attitude as to the rate at which you’ll see results; and also the amount of work that would be involved. But I’d also say that with the exception of exercise, there isn’t any other legitimate non-surgical penis enlargement method. And the fact is both exercise and traction can produce gains which are typically superior to surgery.

As to whether traction is superior to exercise though, I think that’s just a case of different strokes for different folks – you have to decide for yourself which one seems more appropriate for you and out of the two, which one you’ll have the commitment to go forward with.

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