ThisPink Opalite Teardrop Titanium Captive Ring is made with ASTM F-136 titanium and features a syntheticpink opalite for abeautiful look. Sold individually, this captive ring isa nice choice for septum, cartilage, or nipple piercings. With a size of 16G and an inner diameter of 5/16" (8mm), it's ideal for healed piercings.