4M Training Gear Endurance Penis Pump 1.75 inches by 9 inches. Get results you can see and feel with the 4M Penis Pump Set, a deluxe penis pump and cylinder designed to make pumping your way to bigger penis easy, safe, and effective. Deluxe electro plated brass hand pump. Vacuum pressure gauge. Premium acrylic cylinder. Quick release air pressure valve. Ergonomic silicone handles. Designed for dry pumping only. Item dimensions Cylinder width 1.75 inches, height 9 inches, depth 1.75 inches. Hose width 0.5 inch, length 12.25 inches, depth 0.5 inch