Made from 316L stainless steel, this segment ring has a curved hinged bar at the bottom for easy insertion and take out. At the bottom there is a 3mm black onyx stone. The ring opens at the bottom where the stone gem is. Size is 16G with an inner diameter size of either 5/16"(8mm) or 3/8" (10mm). Cool piece for septum, tragus or cartilage piercings! Sold individually (1pc).