Fleshlight STU (Stamina Training Unit) Review: Is It Still The Best Stamina Trainer On The Market?

Ever since I was a little kid I wanted to be a gangster (in the bedroom).

However, my penis had a completely different idea about the kind of sex life I would have (or lack thereof).

Over the years I’ve practiced my stroke so much that I’ve developed callouses on my hands.

After almost giving up, I started searching for sex toys that could help me step my game up without incurring injury or defeat.

Eventually, I came across a type of toy called a stamina training device (or the good kind of STD) and my love life started changing rapidly.

My once disobedient and overly enthusiastic dick finally had some class and my self-esteem is much better for it.

But like any great love story, it finally came to an end because I got into a relationship (kidding, honey).

My stroke turned into a poke and my endurance was completely shot after the first year, meaning I needed some practice and I needed it fast.

Remembering the good old days, I started searching online for today’s best stamina training device and came across the Fleshlight Stamina Training Unit, or STU.

And since the company already has a good rep, I thought “Why not?”

So, was my experience a successful one or is my girlfriend still calling me a two-pump chump?

Well, let’s make sure you know what toy I’m talking about first.

What is the Fleshlight Stamina Training Unit?

The Fleshlight brand is known for producing high-quality masturbation devices for men and couples, but most of their products are geared towards strictly pleasure.

Our little Stamina Training Unit, however, is made to pull double duty on your most sensitive body part.

Designed primarily for men who suffer from premature ejaculation and/or erectile dysfunction, the STU is made to help increase the user’s sexual stamina and endurance by training their penis to endure extremely pleasurable sensations during frequent, routine masturbation sessions.

It looks and functions just like a standard Fleshlight masturbator, only the internal texture has been scientifically developed to generate maximum stimulation to the shaft and corona of the penis through manual manipulation.

Fleshlight STU Review: The Main Features

The Stamina Training Unit by Fleshlight is considered rather large by some users, but I think it possesses a curiously discreet design and lightweight casing.

In fact, the brand’s entire lineup is famous for being crafted to look similar to a standard heavy-duty flashlight.

Created by a cop, I can see how a design like that would come in handy.

However, we’re not all officers of the law so it can be difficult to explain the presence of this toy to some people.

Either way, it measures about 11 inches in length and can accommodate an 8 inch penis of average girth.

The internal canal is this device’s redeeming factor, though.

Made from the manufacturer’s patented and popular SuperSkin material, this toy’s sleeve features a hyper-realistic, skin-like texture.

Deep inside the sleeve are tons of little nodes and nodules that twist and tickle their way up and down the penis with every manual stroke.

And since the toy itself features an ergonomic handle, humping and pumping is easier than one might expect.

Furthermore, the sleeves are completely interchangeable (albeit sold separately) and the opening to the canal is soft, supple and inviting.

As a toy with the world’s most intense texture, you’d think it would be a stand-alone product.

However, the STU can also be used with the brand’s high-tech, automatic masturbation device, the Launch, for a hands-free experience that puts your penis in league with the pros.

What Comes in the Box?

Most modern-day sex toy manufacturers don’t offer freebies in the box with their product. I like to chalk it up to the maker not wanting to waste production money on unnecessary items, but everyone knows that a little goes a long way.

Brands that hook it up get better loyalty out of their buyers, and it’s apparent that Fleshlight knows this.

While they don’t put a ton of incentives in the box, buyers do get more out of the FL team than they do out of most other pleasure product makers.

Here’s what you’ll get for the money you spend:

  • The Fleshlight STU masturbator
  • A small packet of water-based lube
  • An instruction manual
  • A warranty registration card

You’ll probably notice how there isn’t a storage container included with your purchase. The designer has taken special efforts to make all their toys super discreet, but it’s still nice to have something on deck to help you protect the SuperSkin material.

By the way, that stuff is notorious for collection dirt, dust and debris, so take care of it properly and spring for some toy cleaning solution or the brand’s patented renewal powder if you know what’s good for you.

The Experience

As always when using a male masturbator, it’s easy to have a good time and not even notice the pros and cons of the experience.

I try to be as objective as possible, even though my eyes are usually rolling into the back of my head when I’m taking mental notes.

Either way, each of my sex toys get put through the ringer and they’re all subject to the same basic criteria to be viewed as “worthy” by me and/or my partner(s). Here’s how it went down for me with the Fleshlight Stamina Training Unit:

  • The Dimensions 

There’s nothing better than a manual masturbation device that can fit snugly in the palm of your hand. The STU is super ergonomic, not only in its overall size but in its shape as well.

It looks and functions just like a standard Fleshlight masturbator and it features a conveniently curved handle for better control.

  • The Features 

It isn’t the most high-tech sex toy I’ve ever encountered, but the overall design was obviously well thought out because I needed little more than a few drops of lube to experience a full satisfying masturbation session.

I truly enjoyed the sleeve texture the most, but the smooth opening and discreet dimensions were like the icing on the cake.

For a completely manual device, this thing felt like it had a life of its own.

In fact, it will once I buy the Fleshlight Launch with my next paycheck; mark my words.

  • The Sensations 

With enough lube applied to my penis beforehand, the toy made my pumping motions feel like a very skilled blowjob from a thirsty and orally fixated partner.

It was extremely intense though, especially around the tip of my dick as I pulled upward on the device.

It creates a little bit of suction when you try to pull it off, so that was like a bonus feature I wasn’t expecting.

I heated the sleeve with the Fleshlight Sleeve Warmer accessory I already owned and it was literally lights out for me 8.7 minutes later.

  • The Functionality 

I’m usually not a fan of fully manual masturbators because I’m lazy when it comes to my orgasms.

However, the overall weight balance and distribution made the STU super easy to use.

And since it’s compatible with the brand’s automatic machine, it can be enjoyed in several ways and is therefore more versatile than one might think upon their first inspection.

The Ups and Downs

It can be hard to find a flaw in something that comes out of the Fleshlight lineup. Those guys really seem to have a corner on the market, although the competition is heating up significantly with the invention of certain technologies.

And whether the brand is popular or not doesn’t matter when it comes to a savvy shopper.

Even the best manufacturers have slip-ups every now and then, plus otherwise ideal products can still have a few ups and downs that need to be considered ahead of time.

The Stamina Training Unit is one of them. Here are the things I think you need to know about it before spending any money:


  • Extreme sleeve texture for maximum pleasure
  • Regular use can help stop premature ejaculation
  • May fight the beginning stages of erectile dysfunction (ED)
  • Compatible with the Fleshlight Launch device
  • Discreet design for optimal privacy
  • Made from skin-safe materials
  • Fully submersible in water


  • Requires manual power
  • Does not accomodate all penis sizes
  • May be too intense for everyday use

Where To Buy The Fleshlight Stu Online:

THE OFFICIAL FLESHLIGHT WEBSITE – We suggest you only getting this toy at fleshlight’s official website as there are plenty of chinese fakes online. It will get you the best price and fastest delivery anyways.

The Takeaway

Created to help men jingle their Pringle into submission, the Fleshlight Stamina Training Unit (better known as the STU) is not for the faint of heart.

With a unique and extreme texture that’s proven to make the user ejaculate within minutes, this masturbator for men is a force to be reckoned with and a sex toy to be taken seriously.

The device itself looks and performs like a standard-sized Fleshlight – able to be used with the Launch and beyond – but what’s inside the tight, ergonomic canal makes all the difference.

Because of the exclusive sleeve and user-friendly design, this bad boy is the world’s most ideal pleasure product for personal gratification and enhancement besides naps and lottery tickets.

Overall, I think it’s an effective and convenient item to have around the house, especially if you have trouble with erectile dysfunction, premature ejaculation or reaching orgasm with traditional sex toys.

Lovense Max