Harness the Revolution harness from Nasstoys. Couple friendly, easy to adjust. For men or women. Stylish and comfortable. 2 rings, 2 sizes. Fits many dongs. Compatible with all Nasstoys “Whoppers” and “Lifelikes”. Materials: Harness – 100% PVC. Size: Ring Diameters – 2.125 & 2.5, Adjustable Harness – 7.0″ X 5.0″, Fits up to a 60″ waist.