The male penis is composed of three smooth muscles of a cavernous body, and about 65% of the penis is a cavernous body and muscle. To be durable, the key is to exercise the sensitivity of the glans penis. Root Bath Penis Pump can exercise your dick to be extremely hard, and make sex more cool and lasting. Add warm water, wrap your penis at 360, and exercise in a water bath to stimulate fully. The high-definition LCD screen records the exercise duration, and the precise scale clearly records the process of penis growth. 6 modes and 6-speed adjustment, which bring different levels of experience, and ensure more lasting sex in bed.