This scissor handle pump creates the necessary vacuum for the use of penis cylinders for the enlarge-ment of the penis. The pump has an indicating instrument (manometer) to judge the amount of the negative pressure created. An air inlet valve, which reacts to the tap of a finger, makes it possible to comfortably regulate the vacuum with the cylinder attached. The pump is supplied with a vacuum hose and a matching hose fitting to fit all of the Dr. Cock cylinders we offer.