The Best Pump on the Market! Our Trigger Pump Is a hand-operated, light weight, heavy duty vacuum pump, with a pressure release valve at your fingertips. This model comes with an air pressure gauge which allows you to monitor the amount of vacuum pressure being applied. Convenient for travel. The trigger vacuum pump is the ultimate in penis enlargement Each cylinder is hand crafted and made of the finest, medical-grade, industrial strength, crystal clear acrylic. The cylinders are tapered toward the top to match the natural anatomy of your penis, and is flared at the base for maximum comfort. No gaskets are required. Each cylinder contains a state-of-the-art air valve, which allows for quick and easy disconnection from the pump while maintaining pressure within the cylinder. Dr Joel Kaplan cylinders are the best on the market today. Dr Kaplan's Penis Pump Enlargement System incorporates a leather strap, to be used after each pumping session. Using the leather strap after a session allows the penis to remain semi-erect by maintaining a fair amount of blood in the penis, assisting in the enlargement process This copyright protected instruction manual/penis enlargement schedule is the result of years of research and proven enlargement success.