Each HUMPBALLS cock ring is designed not to pull or curl up on your pubes (good news for all the hairy guys out there) and best of all, HUMPBALLS is made from our super soft SKINFLEX TPR, so it's comfortable for extended wear and use. Recommended lubricant: Water-based / Outer circumference: 12.7 cm / Inner circumference (stretches to fit your member): 6.4 cm / Thickness: 1.3 cm / Weight: 11 grams