Bust a Nut has a sleek and soft touch silicone finish and features a superior and durable 3X stretch. The Bust a Nut can be worn as a traditional cock ring or ball stretcher and can be used for nut stacking to give that perfect tug and slap on the ass while pounding away.The rings provide all day comfort when wearing under your jeans or swimsuit to show off that perfect man bulge. They will also withstand the punishment of your longest play sessions time and time again.This product is safe with all lubricants, completely hypoallergenic, non-irritating and compatible with sensitive skin. Thick Girth for A Powerful Erection No Roll Comfort Fit 100% Soft Touch Silicone 3 X Stretch External Diameter: 2.0" (50mm) Internal Diameter: 1.07" (27mm) Package Dimensions: 5.25" x 4" x .75" Weight: 0.2 lbs.