Crafted with the power to influence, Pro Performance C-Rings are flexible rings created to hug the penis and testicles providing just the right amount of pressure to extend performance and intensify orgasms. This ring uses a formula that adds the perfect squeeze for most users. Worn together or separately, Pro Performance C-Rings provide genuine versatility and strength allowing for prolonged and powerful pleasure. 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.