Mix Up C-Rings to Max Up Your Performance! Wear single, double, or triple c-rings on the penis to increase erection strength and performance. Wear single or double c-rings on the shaft for added partner pleasure. Wear a single ring around testicles as a ball stretcher, ball squeezer, or to delay and strengthen climaxes. This ring uses a formula that adds the perfect squeeze for most users. Extend Activities & Intensify Climaxes, Powerful Pleasure, Non-Pinching Comfort.