Zero Tolerance Ring A Ding Ding, if your looking for a way to keep your cock hard and increase the intensity of your next orgasm, look no further. These rings are designed to sit around the base of your penis. You'll soon discover that your cock will be harder then it ever has before. Veins bulging and straining for release! This set offers four distinct designs and textures to choose from, all made from comfortable, stretchy TPR rubber. Choose the one that works with your girth. Enjoy experimenting with how each ring reacts with your natural build and shape. You'll soon discover a new world of pleasure waiting to be fulfilled.