Classically versatile and immeasurably pleasurable, the 3 C-Ring Set Thin from Doc Johnson's Optimale collection offers a choice of three snug silicone rings meant to enhance the sexual experience for both partners. Made of a velvety silicone with a silky, temperature-receptive touch, the chosen ring can be worn over the shaft of the penis, or over both shaft and testicles, depending on cock ring experience and the desired effect. Styled thinner, mildly stretchy and comfortable, the rings are supple enough to be positioned quickly and effectively. Once in place, the firm hold helps to maintain erection and delay ejaculation by essentially trapping blood in the penis vessels. While worn over the testicles, the rings provide a unique constrained sensation that can help distract from too-intense stimulation. There are three available sizes of C-Ring available with diameters of 40 mm (1.57 inches), 45mm (1.8 inches) and 50mm (2 inches) respectively. Be sure to remove the ring immediately if any discomfort is felt.