The Stirrup C-Ring is designed to keep you harder, longer. Its firm-yet-soft silicone has an opening at the base to secure the balls and keep the testes from contracting. This 35 mm cock ring has a light stretch to fit directly on the shaft and and stay in place no matter how long the ride lasts. Soft, Stretchable Silicone Larger, Harder Erections Enhances Size and Thickness Easy to Clean Top Rack Dishwasher Safe Bleachable Hypoallergenic, Nonporous, and Odorless Phthalate Free, Body Safe Width/Diameter: 1.75 in. (4.4 cm) Unstretched Inner Diameter: 1.18 in. (30 mm) Unstretched Inner Diameter: 0.91 in. (23 mm) Depth: 1.9 in. (48 mm)