Double your pleasure! The Menage a Trois Double Penetration Harness and Dildo Set features an adjustable harness with two interchangeable O-rings for double penetration pleasure and is perfect for use by men or women. A smooth 5 x 1.125 dong made of 100 percent medical grade Silicone completes this set and your fantasy. Harness adjustable to 60. Metal O-ring has an inside diameter of 2. Rubber O-ring has inside diameter of 1.76.