Master Series Shadow Silicone Beaded Cock Ring. Erections are made all the more impressive with the Shadow Silicone Cock Ring from Master Series. This restrictive ring is ideal for any man who desires a sleek, modern look in a supportive cock toy. Designed with Stimu-Orb beading for your pleasure, once on you can enjoy thicker, harder, longer lasting erections instantly. Silicone is non-porous, hygienic, easy to sterilize, temperature sensitive, and phthalate free. The Shadow Silicone Cock Ring has just enough give to fit over your cock, while maintaining the firmness and restriction needed to keep you rock hard for hours. Measurements 2 inches outer diameter, 1.5 inches inner diameter. Material Silicone. Color Black.