316L Surgical Steel Internally Threaded Labret with Prong Set Round CZ Top (Sold Individually) Internally threaded Labret with 2mm and 3mm prong set Cubic Zirconia. Lightweight and comfortable to wear. Material : 316L Stainless Steel Thickness: 16g, Length: 8mm, Gem Size : 2mm & 3mm Exceptionally High Quality Jewelry!