This is the 4th different "sleeve" I have purchased...... let?s just say it may be the last (but will replace if I have to)!!!! this thing is great!! Only thing is that it is a little on the small side (not the opening, (well it is a little small, but isn't that the point) that is perfect) the toy as a whole could be bigger to have something to hold onto and be a little more realistic, but for the price it can?t be beat, literally, Hahaha! Because of this I am now addicted to ************, not that I wasn't before but before I was going once a day or every other day, now I am 3 times a day, 5-6 if I'm not working! I've had it for ten weeks and have used it well over 200 times. It really works best on desk, cause that?s where you have the best stimulatory material is now isn?t, usually on the corner or desk, *** end out, hahaha. Use a pillow (with a towel on top of pillow to keep it clean) to adjust the height because once you get comfortable you can pop right away or hold it in and increase your stamina! Must use pillows if using on the bed. The the pillows adjust for height and comfort and keep the *** cheeks off your stomach which becomes uncomfortable after repeated pounding. Also use plenty of lube. My favorite is ID Glide and ID Pleasure that gives extra sensations, pump works the best/cleanest. Also a must is a vibrating bullet, the pocket holds it into place and keeps bullet clean. You can't even feel the bullet when in. And for the price WHAT A BARGAIN!!!! I think that it is very very durable. After repeated use there are only 2 slight tears in the vaginal opening and they haven't affected use yet. This thing is great. A must buy every man must own one!!!