316L Surgical Steel Flat Dermal Anchor Top with Opal Ball Thickness: 14 Gauge (1.6 mm) Material: 316L Surgical Steel Stone: Synthetic Opal Sold by: Piece Dermal Piercing Jewelry, Dermal Anchor, Dermal Piercing, Synthetic Opal, Body Mods, Piercing Jewelry, Piercings, Opal, Meditation