This state-of-the-art strap-on sex system is interchangeable with all other Vac-U-Lock products that are designed to give you command and control for the ultimate in erotic pleasure. The buckle style frosted saddle harness will fit waists up to 45in in diameter. The clear jelly Vac-U-Lock penis and balls dong is 6in X 1.5in. Plug and powder are included. Last but not least, is a 16in adjustable neck band that has straps for riding control! Ride Baby ride!