Hombre Snug Fit Silicone Thin C-Rings 3 Pack Navy Blue. This set of classic cock rings are made of 100% premium silicone and come in three standard sizes to ensure a perfect fit. Each ring is soft to the touch and provide just the right amount of stretch to ensure easy application. Soft, body safe silicone. 3 sizes for the perfect fit. For penis, testicles or both. Sizes 1.25 inches, 1.75 inches, 2.0 inches. Phthalate free. Material Silicone.