Take your hydrotherapy to a whole new level with the worlds most powerful penis pump. Advancing the Hydropump design to a new level, with a new valve and detachable handball, the Hydroxtreme-Series is the Hydropump for the man who is serious about getting the very best from his pump. The Hydroxtreme- Series comes complete with all the accessories you could ask for. Formerly known as the X20 Xtreme, the Hydroxtreme5 is designed for a user whose penis is 3-5″ (7.5-12.5cm) when erect.