The Automatic Rock Hard Penis Pump is just incredible - it pumps you up by AUTOMATIC suction... no hand pumping required! This new and amazing Rock Hard Pump is driven by Power Suction from the controller - just press the button and it will pump and suck your 'John Thomas' up in no time.The AUTOMATIC Rock Hard Pump has an 8" clear measured cylinder, with a soft silicone sleeve and a detachable power controller.The Rock Hard Pump has an amazing strong AUTOMATIC suction, so sit back, push the button and watch for Rock Hard results! - it cannot be any easier than that.