The ultimate in hydro-technology for penis development and health, the Bathmate Hydromax uses a unique bellows pump system to ensure your penis is looking its best, and feeling amazing. With 35% more suction power than the previous model, the bellows pump system provides you with quicker and more pleasurable gains. An all-new ring at the base of the vacuum helps provide the penis and testicles with greater comfort during pumping and can be easily removed for cleaning. To the uninitiated, this product works like a basic penis pump but filled with water for extra satisfaction and size. A new swivel bellows feature allows for full 360-degree rotation so that you can watch clearly as your penis becomes enhanced, and a latch valve system allows for single hand filling in the shower. Measurements are provided along the length of the pump in both metric and imperial so you can keep track of your improvements, and texturing on the tube allows for you to keep a firm grip while you pump away.