Pump up your penis to its optimum size for increased performance, better erections, and maximum pleasure. This automatic design uses a vacuum that creates an airtight seal around your penis. It uses pressure and increased blood flow to improve your size over time. Press the suction button to activate the pressure. Another click will turn it off, or use the pressure release button to create a sucking sensation that will send you into orgasmic ecstasy. The clear red cylinder and universal measurements allow you to view your progress. The upper controller is fully detachable so you can clean your pump.