Automatic penis pump with a transparent cylinder with a measuring scale in cm, smoke coloured sleeve and black control panel with a display screen. The ON/OFF button on the black control panel creates the potency vacuum. The display screen shows the pressure (measured in PSI) and can be turned on and off separately to the pump (pump stays on). You can release the pressure very easily by using the air-release button. Complete length 31 cm, penetration depth 20 cm, Ø 2.2-7.2 cm. Material: TPE, ABS, phthalate-free according to EU Regulation REACH. (Please order batteries separately: 4 x Micro/AAA).