WildKlass Jewelry Black PVD Plated 316L Surgical Steel Captive Bead Ring with Dimple Ball (Sold Individually) Black PVD Plated 316L Surgical Steel Captive Bead Ring with Dimple Ball. Lightweight and comfortable to wear. Material : 316L Stainless Steel Versatile piece that can be worn as Tongue Ring, Nipple Ring, or any other parts of body. Exceptionally High Quality Jewelry!