1pc Internally Threaded Barbell Tongue, Nipple Ring 00g thru 4g Internally Threaded Barbells Tongue, Nipple Rings 00g thru 14g Fast Shipping - Select desired gauge from the above menu Materials: 316L surgical steel 5/8" wearable length - Ball Size - 6mm (14g, 12g, 10g, 8g), 8mm (6g, 4g), 10mm (2g), 12mm (0g, 00g) This product is sold by the piece, if wanting a pair order two