The addition of an electric pump gives this penis enlarger a very modern look and feel. Place the pump over the penis and press against the abdomen. Use the simple push button control to pump the air out of the cylinder and feel your penis getting harder. The accurate 1 atm pressure gauge measures the suction power, and a ruler on the cylinder allows you to check progress. The Power Auto Sucker Pump is part of the Manpower collection from European sex toy experts TOYJOY. Requires 4 x AA batteries.