This set of three rings offers something for every occasion. Wear them individually or combine for extra sensation around the testicles and at the base of the penis.  Stretchy but firm enough to offer larger, harder erections that can intensify the sensation of an orgasm. 
- Material: Silicone (Do not use with silicone lubricant)
- This product should not be worn for more than 30 minutes
- Each ring stretches up to 2x its size
Measurements 
Small ring: Diameter: 1.22 inches or 40mm; Ring Thickness: .75 inches 
Medium ring: Diameter: 1.38 inches or 45mm; Ring Thickness: .75 inches 
Large ring: Diameter: 1.57 inches or 50 mm; Ring Thickness: .75 inches