Spartacus Leathers Cock Rings Nitrile 5 Pack Rainbow. As a result of the recognition of the rainbow pack of rubber cock rings, they've introduced a 5 pack in nitrile. Colorful, flexible nitrile cock rings would be the perfect skin safe solution for individuals with rubber allergic reactions, plus they provide a firmer experience than our rubber rings. These amazingly durable cock rings are constructed with 100% skin-safe nitrile, exactly the same materials in hospital mitts. Nitrile cock-rings are strong yet flexible, snapping to shape after each use. Nitrile is really a latex-free, strong and versatile material. Since it is latex-free, nitrile is really a preferred cock ring material for males with rubber allergic reactions. And never fear, they're suitable for silicone & water-based lubes! Set includes 5 1.25 inches rings. One each colors: Black, Blue, Crimson, Red and White-colored. Spartacus Leathers A Love For Quality page 21