Fleshlight Stamina Training Unit, perfect the edging experience
Mondego85
Mar 20, 2025
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- Price4.2/5
- Noise4.8/5
- Duration of use30 minutes
- Charging time0 minutes
- Pros
- Great quality
- Handles larger sizes
- Excellent orgasm
- Cons
- Higher priced
- Effort to clean and dry

I liked the fact that the plastic case has a cover on each end. It makes it easy to store it upright without the risk of it falling over. The sleeve can easily be removed and reinserted without much effort. The sleeve itself is very soft and inviting. The sleeve material is body safe comprised of Fleshlight's patented 100% phthalate-free SuperSkin™ material. There isn't much of an odor to the material. The inside of the sleeve has a number of ridges/bumps that is unique to the STU design. There isn't really a varying pattern, it's basically the same throughout the canal.

I immediately noticed that this Fleshlight toy was a bit more roomier compared to other toys I've tried. For those of you with a bit more girth than average, this toy will accommodate you without any issues. It also appears to handle longer length as well (Fleshlight lists 8.5" as the maximum insertable length). This is a full size Fleshlight and clearly not as tight. I was able to tighten the end cap to my liking to increase the suction effect. I liked the fact that the experience can be different based on that feature.
The STU canal design was an interesting experience. I found it did not over-excite initially and allowed a longer build up, but you can quickly hit that "point of no return" if you allow it. Part of that might be due to needing more lube after using it for a bit. The added friction can change the experience.
After some time I found myself having a strong orgasm when I was ready for it. Compared to some other toys I've used I noticed that it was creeping up on me more, but it was intense. I'm not sure if that's ultimately part of the "stamina training" but it certainly forces me to be more mindful. Either way its definitely a different experience and very enjoyable might I add.

The adjustable end cap worked very well. Fleshlight designed this to be fully closed, partially opened, or completely removed (with a variable amount of suction in-between). It worked exactly as described and allows for different experiences to be had. One of the nice features I observed is that with the cap on (and not even fully closed), it greatly reduced the noise compared to the cap being completely removed. The experience at that point was nearly silent.

Fleshlight tends to not disappoint. The materials used seem to be good quality. The outer case is plastic and should hold up well over time. The material of the STU sleeve is on par with any other Fleshlight sleeve I've come across. Given that the canal size isn't extremely small, it should hold up to varying sizes and repeated use hopefully without much risk of tears and general wear and tear.
Important to note to only use a water-based lubricant with Fleshlight sleeves. Anything else will more than likely damage the material and reduce the longevity.
The Fleshlight STU can be purchased for approximately $60-70. Fleshlight products are not the cheapest around but they tend to have a reputation for quality. Also a bonus that they're made in the USA. I'd say overall this product offers an OK value assuming it holds up well over time. There are other powered toys that can be purchased at this price point, but the quality might be a bit questionable and they're highly likely to be manufactured overseas.

Compared to a shorter open-ended stroker or a toy that can be turned inside out, it definitely takes a bit more effort to clean and dry. Rinsing it out with cold water gets the cleaning part done but you must spend some time ensuring it's completely clean. I'd say drying is mainly the tedious part. I have found that air drying (setting it on something that can move air) works but there are other methods, such as a reusable drying stick, that can also get the job done. It's not as easy as turning it inside out and towel drying but it's also not impossible. It just takes some more time and effort. It's crucial to ensure it is dry before storing it otherwise you'll likely run the risk of bacteria/mold and then it's time to toss it.
Fleshlight offers their own line of products to improve the drying process. The Fleshlight Air (~$60) allows you to set the fully assembled case (without the covers of course) on a device that you can set a timed dry cycle. They also sell a Fleshlight specific hang dry product (~$16) to air dry just the sleeve itself.