These sleek Cock Rings are made to help you maintain stamina by fitting around the shaft and testicles to create a firm grip that will not only help you last longer, but will also give you a bigger, harder erection that is sure to satisfy both you and your partner. Included with each cock ring is a black velvet pouch for storage. Measurements: Small Ring - approx. 1.75 inches inside diameter and .5 inches wide. Medium Ring - appprox. 1.875 inches inside diameter and .5 inches wide. Large Ring - 2 inches inside diameter and .5 inches wide. Material: Chrome-plated stainless steel.