When you use the Tube Penis Pump your cock can size up and stay hard! It has an 8 inch long, 2.5 inch wide smoked black tube with a measurement gauge on the side so you can track your progress and a squeezable hand pump with a pressure release valve for safety. Also included are a stretchy silicone cock ring and 2 removable sleeves. Add the multispeed egg into the mix (which attaches to a pocket in one of the sleeves) and your love muscle will be bulging in no time. 2 AA batteries are included.