Two 14 gauge High Quality 316L Surgical Stainless Steel circular barbells with two externally threaded stainless end balls. This item is suitable for almost any piercing. These are sold in pairs. Photo enlarged to show detail. This circular barbell is 14 gauge. Inner diameter sizes available: 5/16 inch (8mm-this size good for cartilage, tragus, nose, lips), 3/8 inch (10mm-this size is good for cartilage, tragus, nose, lips, septum, navel), 1/2 inch (12mm-this size good for lips, ear lobes, nipple, navel, septum), 5/8 inch (16mm-this size is good for nipple, mens ears or anywhere a larger hoop is desired), 3/4 inch (19mm-this size is good for nipple anywhere a larger hoop is desired).