Give your restored confidence, and enhance your sexual relationships by using the Power Up Penis Pump. The pump uses to increase the size of your genital organ. A soft rubber and a sleeved cylinder are attached. Simply place this sleeve over your genital organ then steadily pump by hand. Air is pulled out of the cylinder when the bulb is pumped and creates a vacuum. This vacuum helps draw more blood into the genital organ, causing an erection. The vacuum increases penis size.