The battery operated version of this high-quality penis pump measures a cool 250mm (9,85inch) and has a sizeable girth of 70mm (2,76inch). Made from medical grade silicone and ABS, this sturdy pump will never let you down! The included silicone sleeve and ABS tube are easy to clean. Just press the button, sit back and let the pump do it's magic. For quick and instant release there is a safety valve button, so there will no surprises! The pump takes 3 AAA batteries (not included).WARNING: Please read product manual before using any type of vacuum pump or constriction ring. Stop using the devices immediately if you experience any pain or discomfort.