Unmatched Penis Expansion Power with the HydroXtreme6. For those measuring up to 6 inches when erect, HydroXtreme6 delivers exceptional penis pump performance. With a handball that allows you to easily control the pressure level, you can maximize both pressure and results effortlessly. Like all Bathmate hydropumps, the HydroXtreme6 is simple to use. Fill the pump with warm water, seal it against your body, and, for maximum intensity, use the handball to create an even stronger effect. Use the pump for three 5-minute sessions, and with regular use, youll notice real, measurable results.