This classic stainless steel captive hoop ring is perfect for septum, cartilage, or nipple piercings. It is made of high quality 316L stainless steel and features a synthetic blue opalite for added dazzle. Sold individually, with inner diameters of 1/4" (6mm) or 5/16" (8mm) in a 16G size. Ball size is 3mm.Add someshimmer to your piercings with this stunning blue opalite captive ring.