With the Unity Harness System, you can give your partner the ultimate double penetration experience. The dual ring design allows you to use your imagination as to what accessories to use . The straps snap onto the double ring to hold it in place. Comes with two sets of O-rings, metal for weight and rigidity, or silicone for a little bit of stretch and give. The comfortable and fully adjustable nylon harness easily fits up to a 152.4 cm waist circumference. Just cinch down the straps, either set of rings are designed to hold your toys firmly in place even when the action heats up. Use one or both rings, either as a strap on harness or as a double penetration cock ring harness for men. This versatile harness system boasts a world of penetration possibilities for the ultimate in DP strap on adventures. Measurements: Cock rings: 4.4 cm and 5.1 cm cock rings; Harness: Fits waists up to 152.4 cm in circumference, straps measure 1.9 cm wide Material: Nylon, silicone, metal Color: