BodyJewelryOnline 3 Pairs of Cartilage Tragus Rook Piercing Studs - 3 mm, 4 mm, 5 mm CZ Gems Included Sold in a pack of 3 pairs - an incredible value! Each pack includes 3 mm, 4 mm, and 5 mm clear CZ gems Shafts measure 16ga thick with an overall length of 1/4"(6 mm) Autoclave safe - perfect for initial piercings  Made of 316L surgical steel - highest quality Sold and Shipped by BodyJewelryOnline