STUDCOLLAR-NITRILE-SINGLES is a pack of SIX super strong as steel nitrile rubber rings. The rings have the following IDs - 19mm, 25mm, 32mm, 38mm, 45mm and 50mm. THey are ideal to find out which size is right for you. They are flexible but they have almost no stretch' so they offer the same strength as a metal ring.

Category: RUBBER COCK RINGS → NITRILE STRONG BLACK RINGS