12-Inch clear cylinder with 3 interchangeable Latex sleeves of various dimensions: Small, Medium, and Large...designed to accommodate the length and girth of the big and long man! This Hi-Tech Pump creates a superb vacuum seal quickly and effortlessly. Comes with precise measurement system on cylinder and quick-release valve!!!
Little disappointed in the suction of this pump, bulb does not fill up after you squeeze it. Needs a little better set up.Anonymous - January 14 2018