The perfect screw! The Midi Anal Screwer Butt Plug is made of soft jelly. The insertable length of the plug is 5in with a diameter ranging up to 1.5in The shaft of the Bouncer has small ridges to give a truly invigorating experience. The plug has an internal bullet that plugs into the ergonomic controller. The two-speed controller requires two AA size batteries, not included. The base of the plug can be secured to the included harness to use for personal pleasure or strapped to the front for penetrating a partner. The harness is adjustable to fit most waist sizes. Fulfill your wildest passions!