5mm Round Clear Cartilage Earring 16 gauge Straight Steel Barbell-Helix Earring Body Jewelry 5mm diameter (just under 3/16 inch) round, clear stone. THIS IS A LARGER STONE!!! 1/4 inch (6mm) barbell Piercing Jewelry-Body Jewellery Bars and Hoops for Women, Men and Teens See our entire collection of blue cartilage earrings in 16 gauge earrings. 316L Surgical Stainless Steel barbell externally threaded