The Bionic Electric Pump lets you take your pumping experience to the next level! Our unique adapter lets you use this incredible pump with other Size Matters cylinders. It provides a continuous even flow of vacuum pressure, and its brass pressure valve allows you to adjust the intensity of the suction. The gauge allows a view of the precise pressure level for maximum control over your pumping regimen. This electric pump offers superior power and convenience over manual pumps and achieves higher levels of suction much faster. To help maintain your erection, this set includes an adjustable snap-on leather cock ring, and three different sized clear stretchy cock rings. Experience the power and convenience of the quiet and dependable Deluxe Electric Pump. Buy one of our fantastic nipple, pussy, breast, or clit cylinders and expand your possibilities! Set includes one high powered electric pump, one penis cylinder, one leather cock ring, three clear cock rings, and 10 feet of tubing.