1 pair of thorns nipple trainer for a longer fixed stretch on approx. 30mm. For use with an existing piercing ring. The piercing ring comes over the crossbar. The ball of the crossbar can also be unscrewed. There are dull thorns on the underside of the ring. The inner diameter of the ring is 31mm. The outer mass is approx. 43 x 40mm. Material stainless steel. Total weight of both approx. 77 grams.