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 45? in diameter. The clear jelly Vac-U-Lock? penis and balls dong is 6? X 1.5?. Plug and powder are included. Last but not least, is a 16? adjustable neck band that has straps for riding control! Ride Baby ride!