WildKlass Jewelry 316L Surgical Steel Screw Nose Ring with Prong Set Gem (Sold Individually) Mirror finished Implant Grade 316L Surgical Steel screw Nose Ring with 3mm prong set Cubic Zirconia. Lightweight and comfortable to wear. Material : 316L Stainless Steel Thickness : 18GA & 20GA, Gem Size : 3mm Exceptionally High Quality Jewelry!