These unique hinged hoop rings feature opal lined front design. The front facing edge of the ring is embedded with vibrant opalite making it perfect for wearing in a variety of piercings. Clicks securely and easily open and shut. You will love these! COLOR Silver MATERIAL 316L Surgical Steel GEMSTONE Opalite GEMSTONE COLOR White, Blue, Purple, Pink THICKNESS 16 gauge (1.2mm) INNER DIAMETER 8 mm / 10 mm PLACEMENT Septum, Daith, Helix, Nose Product includes 4 rings.FOR MORE INFORMATION PLEASE READ Septum, Navel Rings, Body Piercings, Piercing Jewelry, Nose Hoop, Monroe Piercings, High Quality Jewelry, Silver, Lip Ring