Set of 3 silicone cock rings in graduated sizes: small, 1.875 in.; medium, 2 in.; large 2.25 in. diameters. Use the smallest, tightest-fitting ring to constrict blood flow. Switch to the medium-size ring for a less intense fit. Wrap the largest ring around the scrotum to delay ejaculation. Use individually or all at once for ultimate control.
