The largest penis pump that Bathmate will ever offer - the HydroXtreme X50 is perfect for anyone over 23cm when erect. Simply fill the unit with warm water, and seal it against the body for three 5-minute sessions to see real results. For an experienced user, the HydroXtreme X50 adds an additional level of pressure to the workout via the included handball attachment, maximising pump pressure to create even stronger results.