Add a huge asset to your physique! This high-tech penis enlargement system is made by The Boston Pump Works. The clear cast lucite cylinder measures 1.75in in diameter by 9.5in long and is specially flared on the bottom to create a comfortable suction. The brass air chamber and piston rod have been coupled with a dependable neoprene valve. This heavy duty yet light weight hand held industrial grade pump has a state-of-the-art connector and air valve which allows pump to disconnect from cylinder while maintaining exact pressure desired. To sweeten the package, this vacuum pump even works in water. Pump your ego while you pump up your size!