See your manhood get larger as you apply vacuum pressure to the Pump Worx Accu-Meter Power Pump. The cylinder is 8 inches long and has a width of 2,75 inches long. On top of the cylinder is the gauge that tells you how much vacuum pressure you have pumped and to set itself apart, instead of the usual ball pump you get a pump system that is more efficient and easier to use. The material used are ABS plastic, acrylic and TPR.