Prowler RED Silver 40mm RingMake an impression on your partner with a piece of intimate jewelry that not only looks sexy but also can enhance the feel of penetration for both partners. Featuring an inside diameter of 40 mm and a depth of 17 mm this silver cock ring is made from firm durable and body-safe aluminum that will snugly wrap around a penis restricting the flow of blood to the penis and increasing sensitivity as it engorges in size as well.