The bottom Part that looks so tightly sunned aint waht it seems. that silicon part is so cheap thats number one number two the hand grip is cool but very limited on suction because the silicon gets sucked into the cyclender. not worth buying at all. the main thing to look for is a harder end part that with stay sterdy and wont get sucked in and press your penis against the wall of the cyclender. Dont wast your time with this aint worth the money