BodySparkle Body Jewelry 3mm Clear Jewel Cartilage Earring-316L Steel Barbell-16 gauge 16 gauge 316L Surgical Stainless Steel Barbell with 3mm diameter clear, prong set stone Internally Threaded. Both ends can be removed. Check them often to make sure they are tight. See our entire collection 16 gauge barbells for cartilage, tragus and more. Sold individually, not in pairs.