This versatile Black PVD 316L stainless steel Captive Ring with a White Opalite bead is perfect for septum, cartilage or even nipple piercings. Sold individually so if you're buying a pair, mark the quantity as two. It features a 18G, 16G or 14G barbell with inner diameters of 5/16" (8mm) and 7/16" (11mm) with a 3mm ball size. It is suitable for healed piercings.