Performance VS3 Pure Premium Silicone Cock Ring Large 3 Pack. Stay harder and longer with these male enhancement rings that are a blend of taut and stretchy. It can be stretched up to twice its original diameter. Made of body safe Silicone. Contains no synthetic fragrance, phthalate or latex. Caution: Do not use products made of a soft plastic with Silicone based lubricants or petroleum based products such as baby oil or Vaseline. It will degrade the Silicone. 3 rings 2 inches.