RingO Biggies colossal cock rings that make a massive impression. Colossal cock rings that make a massive impression. Super stretchy reusable design. Lab tested, body safe SEBS Silicone. Available in 3 colors: Clear, Blue and Black. RingO Biggies are a thicker version of one of our more popular cock rings and feature a tighter, firmer fit that makes a massive impression. These stretchy cock rings offer simple, no frills enhancement that can be worn either around the penis or the penis and testicles. You choose how you would like to look and feel! Whether enjoying longer lasting sex with a partner, amping up endurance training, boosting masturbation, or sporting a more prominent package, RingO Biggies are the premium choice for impressive results. Color Blue.