Take your hydrotherapy to a whole new level with the worldandrsquo;s most powerful penis pump.Advancing 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.The Hydroxtreme6 is designed for a user whose penis is 4-6 (10-15cm) when erect.