About six years ago my urologist at the VA asked me if I wanted a penis pump to use in addition to the testosterol gel that I was prescribed? I immediately said yes, and I was given an appointment to return in two weeks.
When I returned there were about a dozen men in the classroom at the clinic's urology department. We were joking among ourselves about the idea of a penis pump, but none of us ever saw one,
When the doctor came in he opened a cardboard box about the size of a case of beer. He reached in and gave us each a smaller box with our new penis pumps. He showed us a slide show, and explained the use of the pumps before dismissing us.
As soon as I returned home I went into my bedroom to try my new toy. I removed all my clothes, lubed up my penis and inserted it into the open end of the acrylic tube, and using the built in hand pump, I pumped the air out, creating a vacuum. It did make my penis much larger that it has been in years, but I soon found that the air was getting in through my pubic hair. My quick solution was to cut the pubic hair as close as I could with an electric clipper.
Freshly clipped, I lubed myself up again and pumped the air out. Now it enlarged my penis both in length and girth. My plan was to maintain the vacuum for 15 to twenty minutes, and when I finally release the vacuum, my penis was rock hard and at least an inch longer that I have ever seen it. I was so worked up by this time that I masturbated myself to orgasm very quickly. I still use the pump occasionally when I have plenty of time available, and want the enjoyment that only this pump can produce.