With the Unit Leverage System, you can give your partner the ultimate double penetration experience. The double ring design allows you to use your imagination as to what accessories to use. The straps take over 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 stretch and give. The comfortable, fully adjustable nylon harness easily fits a 60-inch waist circumference. Symbolized by the straps, either set of rings are designed to keep 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 features a world of penetration possibilities for the ultimate in strap-on DP adventures. Measurements: Chicken rings: 4'45 cm and 5 cm penis rings; Harness: Fits waist up to 152 cm in circumference, straps measure 1.90 cm wide Material: Nylon, silicone, metal Color: Black Note: Comes with harness, 2 silicone rings and 2 metal rings, dildos sold separately