One White Imitation Opal Tribal Captive Ring with 5/8 inch (16mm) wide silver color base metal tribal design. Makes a great cartilage earring or nipple ring. Captive Rings make great cartilage earrings, earrings for ear lobe, nipple rings, septum rings and more. This item is sold individually, not in pairs! Photo enlarged to show detail. This 316L Surgical Stainless Steel captive ring is available in 20 gauge-3/8 inch only. 18 gauge, 16 gauge, 14 gauge in 3/8 inch (10mm), 7/16 inch (11mm), 1/2 inch (12mm), or 5/8 inch (16mm) inner diameters. Inner diameter is measured in a straight line across the inside of the ring. Captive rings are also known as ball closure rings. The design is held in by pressure and hoop must be opened slightly to get design out. This item is suitable for 20 gauge earrings, 18 gauge earrings, 16 gauge earrings, opal cartilage hoops, helix piercings and nipple rings.