A very high grade, high quality enlargement pump, with a 9 inch long clear cylinder, a surgical latex sleeve for maximum seal and comfort, and a metal trigger connected to the pump via a long PVC tube. Metal triggers are generally more durable and tend to last longer than a plastic trigger, and are easier to use and more hardy than rubber bulbs. Air is extracted from the cylinder by squeezing the metal trigger repeatedly until you reach the pressure required. The Magnum Pump also has a metal quick release control to instantly release pressure from the cylinder, and has a pressure gauge so that you can accurately control the pressure required to enlarge your penis. This pump is suitable for enlarging, erection enhancement, or masturbation, and its quality and price mean that is an excellent pump. A great place to start for enlarging.