HydroMax, Bathmate

Water Pump Generates Stronger Suction For Better Results! This water-based pump naturally enhances blood flow and provides stronger, more even suction for superior results compared to more traditional penis pumps! It's the perfect thing to thing your pumping – and erection – to the next level for the hottest sex you've ever had! Specially contoured entry to better fit your body. Quick release valve. 11.5 inches total length; pumping cylinder is 10 by 2.25 inches. Made from plastic with a rubber base.