The Enhance Travel Pump System offers superior suction–even when the hose is removed–for the ultimate penis enlargement! The pieces disassemble and stack together for a compact fit in the included storage bag so it is easy to take this with you wherever you may go. A tapered donut in the cylinder provides secure suction while the hand pump features an easy-grip contoured handle. Make your erection bigger, harder, and longer-lasting with this easy-to-use system that delivers incredible results! Measurements: Cylinder assembled is approx. 9.5 inches in length with an inside diameter of 2.125 inches that tapers to 1.75 inches at the middle; cylinder stacked is approx. 6 inches by 2.5 inches. Material: Pump handle is ABS plastic; hose is PVC; donut and enhancer sleeve are silicone; travel bag is nylon; cylinder is SAN plastic.