Get pumped about vacuum pumping with the Colt Beginner's Penis Vacuum Pump. This heavy-duty penis pump comes with an industrial grade high pressure vacuum cylinder and a professional style Colt vacuum pump with built in gauge. This built in gauge allows you to keep track of your gains as you push yourself with every pump. There is a built in quick release safety valve which means that the vacuum can be released quickly and effectively. at the base of the vacuum cylinder you'll find a super stretchy penis pump sleeve to help ensure a proper seal, this allows you to maximise your penis pumping experience whether you're pumping for increased size or sensitivity.