The Fleshlight is housed in a hard plastic case that is made to look like a large flashlight. You can either use the Fleshlight in its case or by taking the sleeve out of the case and use the sleeve by itself. It is easier to leave the soft sleeve in the case because most of the Fleshlight's weight is at the entry. You can also use it in the shower as long as you use it before soap because soap can ruin the material.

My favorite way to use the Fleshlight is to use it hands free. When I first got my Fleshlight I accomplished this by putting it between couch cushions. Then, one day I was looking on Fleshlight's website and I noticed they were selling mounts for the Fleshlights. The mounts are used to simulate different sex positions such as doggystyle and missionary. I decided to try and make my own. I started by finding a cardboard box that was a comfortable size. You may need to experiment until you find the size that works for you. I unscrewed the bottom cap from the Fleshlight case and traced around it where I wanted the Fleshlight to be in the box. Then I cut the outline out and put the Fleshlight case in the hole and it works perfectly. If you are someone who adjusts the cap for suction during use, this home made mount may not be good for you.

The STU is a soft masturbation sleeve in a hard case that was made to help men last longer. It is one of the most intense Fleshlights out there and you can use it to practice your techniques for lasting longer.

Like all Fleshlights the STU is made of the patented Superskin material. Right away you'll notice how soft and smooth it is. There are no smells to Superskin either, which is a plus in my book. My UR3 toy had a bad smell to it. I found that odor got in my way. Superskin is a porous material and should not be shared unless everyone wears a condom. Even more impressive than the surface feel of the Superskin is the texture the STU has on the inside. It comes close to the feel of a real vagina. The texture is made up of these little rounded bumps that feel absolutely amazing. The only way I can think to describe it is by saying it feels like it sucks you dry. It literally sucks you dry. I promise you this toy will leave you completely satisfied. I have 3 Fleshlights and out of the Turbo Tube, Mini Lotus and the STU, the STU is by far the most intense and satisfying. The Tubro Tube is discontinued but it had lines going straight down the inside of the Fleshlight and also some going in a circle every little bit. It was also very tight. When using it, it just felt smooth and I couldn't feel any texture at all. The Mini Lotus texture is harder to explain. It is made up of different sections that are shaped like a peanut, a "C" and a circle followed by 3 skinny circles. The Mini Lotus feels pretty good but is no where near as intense as the STU. With the STU the little bumps just feel amazing and if I was only going to get one Fleshlight it would be the STU. Of course, if Fleshlight comes out with a better, more intense sleeve, I'll be standing by!

The Fleshlight masturbation sleeves are known for their intentional similarity to a very large flashlight. In my opinion, it does not look exactly like a real flashlight but the basic shape is close enough. If someone where to glance at it they may think it's a flashlight. Some people may think it is just a case for something else. The large plastic "flashlight" arrives inside a metal canister which is not discreet at all. It has pictures of the Fleshlight and sexy women. There is no mistake how the item inside is to be used.

Looking at it from a short distance, I don't think anyone would immediately know it was a sex toy. However if someone where to pick it up and look they would see it says Fleshlight on the side and know it wasn't what they were expecting (assuming they were expecting a flashlight!). The case with the soft sleeve inside measures 10 inches tall and weighs 1.5 lbs. Most men, including me, will need to use 2 hands with this toy. That is due to its large size, weight and shape. The sleeve fits in the case very nicely and overlaps the entry of the case to keep it air tight. The opening to the STU is an attempt to look like a woman's vaginal opening. It does have a realistic look. The color, which is a light pink, is not realistic.

This Fleshlight STU would fit most sizes. If you are extremely thick you will need to be careful or you may tear the material. I am average in length and slightly less than average in thickness. There is plenty of room for me while still being snug enough to feel good. Longer guys should be fine, too. The product description says you can fit up to 8". That is longer than most than most sleeves I have used.
When traveling you have to decide if this will fit in with your needs. I wouldn't say its too big to take with you but if I was going to travel with a Fleshlight I would go with the Sex In A Can rather than the STU. The Sex in a Can is smaller and I think slightly more discreet. It would call less attention to itself. However, If no one is going to look through your stuff I don't think the Fleshlight STU is too big to take with you. It will certainly add some fun to your trip!

The Fleshlight has a cap on the bottom of the case that can be used to control suction. To increase suction you tighten the cap. Loosening the cap should lower the suction. This function has not worked well for me. I have had 2 cases and have only had the experience of this working one time. I'm not sure why it only worked once but having the cap all the way tightened still lets out air and makes kind of an annoying noise. The noise is just air being forced through the bottom cap. It isn't loud enough to distract you during use. I usually watch porn and can not hear the noise while the DVD is running. I also think you would be okay if a roommate is in another room with the TV on. I usually just leave the cap loose. In comparison, this feature on Fleshlight's Sex In A Can works very well.

I came up with an idea to get an O-ring that would fit the bottom of the case. Although I have not tried it yet, hopefully it will give the STU an air tight fit for greater suction. There are not any moving, vibrating or any type of electric parts. I do not think it needs any vibrations with this texture being as intense as it is. For me it would just be over kill but I have known men to use a small bullet at the end of the case (near the tip of your penis) for a different sensation.

The Fleshlight is very easy to care for. I've had mine since 2009 and it is in great condition with little maintenance from me. You should only use water based lube because other lubes will ruin the material. After you're done using it, rinse it out by running warm water through it to wash everything out. Never use soap. Soap will ruin the Superskin material of the Fleshlight. Pat the outside off with a towel and let it sit to air dry. The inside takes a long time to dry so you may want to loosely wrap it in a cloth and store it that way until it's dry (if you need to hide it away). If you were to store it in the with the lids tight and the sleeve still wet it could develop mold. Mine has never had any mold but the company warns it is possible. Other than cleaning if you want the material to keep its soft and smooth skinlike feel you will need to use cornstarch to powder it. It is recommended that you only use cornstarch and not baby powder or any thing else to maintain your Fleshlight. I have never powdered mine so the material is pretty sticky other than that its fine and powdering isn't required. If you don't powder it rinsing it off or dipping it in water will take away the stickiness. I have also found that you don't need that much lube when you run water through it first.

For your convenience, a small sample packet of Fleshlight water based lubricant is included. Their lube is comprable to other water based lubes I have used.

STU stands for stamina training unit. The selling point to this model is that it will help you develop more stamina so you will last longer with a partner. It was advertised by saying for every 1 minute you can last with the STU you can last 2 minutes with a real woman. I'm not sure if that is true or not but I can say that the texture is very intense. I'm sure that if you used this every day it should improve your stamina and the longer you can last with this the longer you should be able to last with her.

I'll go into more detail on some things I have said earlier in this review. Using the Fleshlight without the case is a little awkward because of its stretchiness. Most of the weight is at the entrypoint and this will cause it to be unbalanced during use. If you use it outside of the case the entry will either sit at the base of your penis or bounce and pull on the sleeve depending on how you're holding it. If you want to use it without the case I would recommend letting the entry set at your base and pull enough of the sleeve down to be able to stroke with the sleeve without moving the entry or stretching anything.

The box that I made is only for doggystyle. I'm not sure how you would make one for other positions, but I'm sure it could be done. If you want to strengthen it, you could cut some cardboard the same size as the side you placed your Fleshlight hole. Take the other pieces of cardboard and put them in the box and one by one cut out the same area where the Fleshlight would go. As you cut more holes in the supporting cardboard, be sure that the Fleshlight will be in the best angle to suit you. Then put all the pieces in the box you want to use. Now, put your Fleshlight in place. The other pieces should help to hold your Fleshlight more steady if its wiggling around too much.