This Screaming O, O Man Cock Ring is definitely the Vibrating Male Cock Ring of choice. The silicone O Man Cock Ring was created to ensure complete stimulation during sex. Made from extremely high quality silicone, the ring is placed at the base of the penis and the second ring around the balls. This ensures both maximum erection time and also help delay the point of orgasm. Don't be caught short, try the O Man Cock Ring from Screaming O for complete satisfaction.