The Top Gauge Professional Pump is durable, easy to use, and has a slightly tapered cylinder, thick air hose, and brass-fitted gauge! The 7 1/2" long x 2 1/2" wide chamber creates an intense vaccum suction for firmer erections. The penis pump comes with a special latex sleeve for maximum comfort and suction, but pump can effectively be used without it. The pump has:
a pressure lever
an easy to use pistol-grip handle
a fast-release trigger safety valve
easy to read pressure gauge for safety
a soft latex sleeve for tight vacuum seal & maximum comfort