The rechargeable version of this high-quality penis pump measures 250 mm and has an impressive circumference of 70 mm. Made from medical silicone and ABS, this sturdy pump will always deliver excellent results. The included silicone sleeve and ABS tube are easy to clean. Simply press the button, sit back, and the pump takes care of the rest. For quick and immediate release, there is a safety valve button, ensuring no surprises. The initial battery charge takes 6 hours, which corresponds to about 300 sessions with this fantastic pump.