Pro Performance C-Rings can help combat Erectile Dysfunction (ED): The c-rings can be worn around the base of the penis (together or separately) to restrict blood flow and help extend erections. When worn around the testicles, c-rings can help erections last for a longer period and can create a stronger climax.
Dimensions:
Main Ring
Outer Diameter: 2.3 in.
Depth: 1.6 in.
Inner Diameter: 1.2 in.
Tightening Ring
Outer Diameter: 2 in.
Depth: 0.6 in.
Inner Diameter: 0.9 in.