Whether you call them cock rings, erection ring or enhacement rings, these items have the ability to help a man maintain a longer, stronger erection. Cock rings operate by regulating the amount of blood that leaves an erect penis. Because of this, the man can hold his erection longer and sexual activity can last a longer amount of time. There are also more decorative cock rings that fit only over the cock head and can make quite a fashion statement when worn. Cock rings for the head, for example, can make the cock head appear slightly larger than normal. Famed sexpert Nina Hartley is here to help explain further the uses, benefits and application of cock rings. If you're interested in getting yourself an erection ring, then we have placed four of our top selling rings at the bottom of the presentation. If you would like to have this as a home reference, plus information on other great sex toys, then check out Nina Hartley's Guide to Sex Toys.