Performance VS4 Pure Premium Silicone Cock Ring Set. It can be stretched up to twice its original diameter. Made of body safe Silicone. Contains no synthetic fragrance, phthalate or latex. As always 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 sizes of rings: 1.25 inches, 1.75 inches, 2 inches.