Bathmate is one of the bestselling and most effective pumps available. Designed for use in the bath or shower the Hydroxtreme 9 uses water rather than air to create pressure around the penis enhancing erection and penis size. The Bellows system now incorporates a new soft sealing, full support comfort ring to give you reduced pressure and greater comfort around the penis base and testicle region. As an added bonus, it is also removable for ease of cleaning. * For men with pre-pumped erection length of 7-9 inches (17.5-23 cm)