Super Soft C-Ring Black from Tantus Silicone. These Super Soft silicone c-rings from Tantus are broad for comfort and safety. A cock ring holds the testicles down and keeps the testes from contracting thus slowing down ejaculation. The constriction takes orgasm from about 6 seconds to up to 45 seconds. The Super Soft Ring is stretchier than the standard Tantus C-rings, so it is easier to put on. Great for beginners, too. Last but certainly not least: you do not have to put it on before an erection occurs. The silicone is stretchy enough you can put it on anytime. You may also like Super Soft Ball Stretcher Kit. Safe for your body. Made from Tantus own unique formula of 100% Ultra Premium Silicone. Easy to clean. Eco-friendly, hypoallergenic, hygienic. Boilable, bleachable and dishwasher safe top rack. Size unstretched diameter 1.5 inches. Stretched diameter 4.75 inches. Video. 2021.