These guys really mean business when it comes to the world of serious penis-pumping. For those used to novelty rubber-sleeved numbers, perhaps it's time to graduate to the real thing.

Northwest Pump Works feature several different lengths and widths of penis cylinders to choose from. If a customer happens to be incredibly large or unusually small, cylinder can be custom-made to fit. The major difference between these devices and the novelty ones is the fact that no rubber sleeve is used.

Serious pumpers insert themselves into the correct-fitting heavy plastic cylinder, and then attach the unit to one of several different styles of suction-creators. Most of these will have pressure gauges in order to chart the rate of suction. It gets very technical, but serious participants in this very special practice need as many helpful hints as possible. Also included with all merchandise are explicit instructions on how to pump properly. Customers should be reminded to go slowly and be careful not to get the scrotum sucked up halfway into the tube, otherwise it's Ouch City, baby! The company is available at any time for helps: they can be reached online at www.nwpumpworks.com.