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UPDATED by PHALLOGAUGE PE Coach, on June 10, 2018

A penis extender on display.

So you're looking to gain some penis length, right?

You're in the right place because penis extenders are made for this.

In this guide, you're going to learn which one is the best.

If you want to learn how to use a penis extender, go here.

Let's get started.

What is a Penis Extender?

Penis extenders (not to be confused with the sex toy, penis extensions), are also known as penile traction devices and penis stretchers.

Comparing what a penis extender looks like to a penis extension.
Here, we talk about penis extenders, medical devices used to increase length permanently, not penis extension sex toys.

They are simple machines that were invented to hold the penis in a stretched state to achieve penis length gains.

This is called "penis traction"

Penis traction is the fundamental reason why penis extenders add length.

You can learn more about the science of penis traction and how penis extenders work, here.

Penis Extender Results

Well even the renowned WebMD acknowledges that penis extenders work:

"You might have to wear a weight (or penis extender) strapped to your penis eight hours a day for six months," says O'Leary. At the end of it, you could be lucky enough to gain about half an inch." --WebMD

typical example of a penis extender device
(Even WebMD recognizes that it's possible.)

But it's not just WebMD that recognizes that extenders simply work.

Extender effectiveness has also been reported in Time Magazine, medical journals (British Journal Urology International [BJUI]), and in research labs across the world.

In fact, we've compiled all the studies done on penis extender results, here, in an easy-to-read summary.

Quick Penis Extender Reviews

Penis extenders typically cost between $150 and $300.

That's a lot of money.

Here are the most well-known extenders and their prices:

Brand Reg. Price Rating (Out of 5)
SizeGenetics $250 4
X4 Labs $200 4
Phallosan $339 5
PeniMaster Pro $325 3
SizeDoctor $350 3
Jes Extender $200 2

The table shows the base price of each extender.

Usually, the vendor offers different packages / accessories that you can buy with these extenders, so the price varies and might actually be a bit higher than expected.

Unfortunately, penis stretchers are pretty expensive.

They typically cost you more than $150.

Some even go as high as $339!

Showing the price tag of the PhalloSan penis extender.
At $339 (not including shipping) the PhalloSan is one of the most expensive penis extenders are the market.

Ultimately, it doesn't matter which penis extender device you use.


Because all that matters is:

Penis Extender Requirements

  • It doesn't slip off.

  • It's comfortable.

  • It's hidden (People can't see it bulging through your pants).

Most extenders on the market can do these 3 things, no problem.

However, now the price is the biggest issue.

That's why some guys try to make their own extender.

In fact, we literally teach you how to make your own homemade penis extender, in this tutorial.

In-Depth Penis Extender Reviews

Or, if you want to learn more about the penis extenders above, check out our in-depth reviews:

Penis Extender Price Comparison

Bar graph comparing the prices of all the penis extenders on the market.
Penis Extender Costs Compared. PhalloGauge wins in a landslide.

What is the Best Penis Extender?


1. PhalloGauge

The Model S penis extender glamor shot
The PhalloGauge Penis Extender (Pulling Extender)

Are we biased?

Maybe a little.

However consider this:

PhalloGauge was ONLY invented BECAUSE we were not happy with the other extenders out there.

The Model S Extender Traction system that we sell here at PHALLOGAUGE is one that has addressed users' issues with all the rod-based systems.

Rod-style systems are were a good first attempt.

While they do have some non-zero value, there were definitely improvements that we made to it to guarantee that you can achieve success.

Some of these points are as follows:

The extender device needs to be completely invisible so that it can be used in public.

This is absolutely necessary because given the requirement that the product needs to be worn for long periods of time (ideally 6 hours a day), the usage of the penis extender should revolve around your life not the other way around.

Another issue is the fact that so many parts are used and the rod-based system is really complicated.

This is because the Model S consists of only two main parts of that take less than 30 seconds to put on and take off combined.

Another problem with extenders is that they are notorious for slipping off, especially at the worst times.

The Model S address this issue by using a flexible, stretchy silicone polymer wrap that completely melds and grips the base of your penis glans for a fantastic grip without squeezing the hell out of your penis.

To see more reasons on how the Model S penis extender device has improved upon the status quo check out this page here.

PhalloGauge Price

At $95, there's no denying that the price of PhalloGauge in the best in literally the whole world.

Nobody can argue that.

So why do we sell it for under $100 when we could easily sell it just under $200 and still beat the other extender prices?

Because we can.

Honestly, we would feel a little guilty if we charged over $100.

Our core belief is that penis extenders should be available for any man - if he so desires it.

Rich or poor, every man has a right to re-take his masculinity.

Other Penis Stretcher Devices

2. PhalloSan Forte

PhalloSan is similar to PhalloGauge.

Both apply a pulling stretch on the penis.

However, Phallosan uses a vacuum condom to hold the penis glans in place.

PhalloSan Issues

Some users have reported irritation and at the tip of the glans due to the vacuum.

The vacuum is a neat idea, however, some guys are just too sensitive and can't handle it.

Vacuum Condom Sizes

It comes if 3 different condom sizes - small, medium, and large.

Ideally, you find the correct size and use it forever.

For example, I chose a "medium".


Because "small" was way too tight on my penis and it was painful.

One problem I soon found, is that you might actually fit between sizes.

For example, I fit between a small and a medium vacuum condom size.

As a result, the extender kept slipping off.

Hopefully you're luckier than I am and you'll fit perfectly into one of the condom sizes.

PhalloSan Price


Phallosan is well over $300.

And that doesn't even include shipping costs (which are also high because they ship from Switzerland.

Given the issues I ran into (and that you might also have), it is hard to truly recommend this extender.

3. SizeGenetics

SizeGenetics is actually not that bad.

In fact, it's probably the best one out of the old-fashioned extenders.

One thing we will say is that the noose system is probably the most comfortable out of the rod extenders.

The $200+ price point is a bit tough though.

Parts and Material Quality

SizeGenetics is made out of a quality steel for the rods.

The white plasic parts that make up the frame of the extender are decent.

The springs are also good quality.

Like all springs, they will eventually wear out so a replacement may be reuiqred.

4. X4 Labs

X4 Labs is also not bad.

However, it's hard to say if it's better than the SizeGenetics because they are so simliar.

X4 Labs has a lot more accessories (for additional price, of course).

X4 Labs has lots of sales, but even then, it's still not cheaper than PhalloGauge.


X4 Labs is famous for all the accessories that they offer.

These come with at an extra cost, however.

The offer multiple cushions and spare parts.

They even offer different noose systems that hold the top of the penis shaft.

Most guys, will find the amount of accessories a bit too much, and will just choose the basic option.

Penis Extender Types

There are two types of extenders:

  1. Pulling Extenders

  2. Rod Extenders

PhalloGauge and PhalloSan are pulling extenders.

Pulling Extenders

Pulling extenders use the instinctual nature of pulling to stretch the penis.

Typically, there is a part that grips the top of the penis shaft, and a belt that comes around that anchors to the base of the penis.

demonstrating the first step in putting on a penis extender
The PhalloGauge foam loop put on the penis shaft.

Demonstrating how a pulling extender works on a finger.

Why would you want to use a pulling extender instead?

A big advantage of pulling penis extenders is that they can be worn underneath any kind of pants without being detected.

Rod-based extenders hold the penis straight out which looks like you have an erection in public.

typical example of a pulling penis extender being used on a person
How pulling penis extenders are worn.

Rod Extenders

This extenders style is pretty obvious.

There are two metal rods that run along the sides that extend the penis.

Longer rods and springs are installed when you want to change the amount of force applied to your penis.

To put it on, you:

  • Set the desired stretching force by choosing the correct rod and spring length.

  • Place your flaccid penis inside the device.

  • Clamp your penis down at the glans with the noose.

  • Put your underwear and pants on over the device.

typical example of a penis extender device
A typical example of a rod penis extender.

SizeGenetics and X4 Labs are rod extenders.

Penis Extender Quality

Extender quality is important.

That's because you have to wear it for about 16 weeks to see size gains.

So you don't want an extender that craps out after week 2.

Here's what matters for penis extender quality:

Important Quality Factors

  • Number of Parts: You want less parts - less complicated.

  • Small Parts: You don't want small parts (might get lost).

  • Material: You want medical grade materials that are safe to touch.

All extenders should be using medical grade silicone rubber for their soft parts.

This includes the noose part on rod-extenders, and the wrap part for the pulling extenders.

Any metal parts need to be stainless steel (no rust).

Price is not necessarily reflected on quality.

We've found that a high price usually means that they company is trying to make more profit off you.

How do we know that?

Becauase all the part materials are the same!

Penis Extender Shipping Options

Does the extender you want ship to the country that you live in?

This is an important question because this affects shipping costs.

Country that Each Company Ships From

  • PhalloGauge: USA

  • PhalloSan: Switzerland

  • SizeGenetics: United Kingdom

Shipping Costs for Different Penis Extender Brands

  • PhalloGauge: $5.96

  • PhalloSan: $10+

  • SizeGenetics: $10+

Shipping Speeds

  • PhalloGauge: USPS First Class

  • PhalloSan: UPS

  • SizeGenetics: UPS

Nearly all of these companies only ship on a business day (Mon - Fri).

Using a Penis Extender to Treat Peyronie's Disease

Peyronie's disease is when your penis curves when erect and is not straight.

While the disease is not life-threatening, it is the source of self-esteem issues as well as possibly increasing sexual intercourse difficulty.

It hss been clinically proven that penis extenders are effective treatments to treat the curvature due to Peyronie's Disease.

Generally, the time frame to see a reduction in curvature is on the order of 6 months to a year.

A censored image of a man with Peyronie's Disease.
Peyronie's Disease is very difficult to deal with. Fortunately, penis extenders are effective treatments to straighten the curvature.

In Conclusion

Penis extenders are the perfect tools that will guarantee your penis lengthening success.

They aid you in your penis training by allowing you to stretch for longer without affecting your day-to-day lifestyle.

They have been clinically proven to work and because all men are the same, there's no reason why it shouldn't work for you as well.

We covered the different types of extender systems (pulling and rod-based) how to use them.

We also reviewed the most famous extenders and what to expect when wearing them.

You're well on your way to getting a larger penis in no time, just as tens of thousands of guys have done before you.

To check out the PhalloGauge Model S extender, which was designed for your user experience (results, comfort, stealth), you can learn more about it here.

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