A unique penis pump from DeeVa's Dr. Love Collection, the John's Only is a hardy, simple suction device that greatly increases blood flow to the penis with use, contributing to harder, longer lasting erections and a possible overall increase in size.
It's exceedingly user friendly, consisting of a firm, clear cylinder with a soft donut sleeve around the opening, a length of flexible hose, and a ratchet clamp. Assembly takes mere seconds, just attach the neck of the cylinder into oe end of the tubing, and slide the clamp over the tubing.
To use, insert the penis into the donut-sleeve surrounded opening, and place the opposite end of the tubing into your mouth, sucking the air out in short bursts until the optimal amount of vacuum is acheived. Slide the ratchet clamp over so that it's pinching the tubing, and that's it. The pump will work with no further effort on your part, freeing up your hands and attention. Whenever the suction needs adjusting, or your pump session is over, just release the clamp.
Thanks to it's simple, no nonsense design with no parts to break or malfunction, this pump could very well be the only one you'll ever need.