Seamless Ring / Septum Ring With White Synthetic Opal Five Round White Synthetic Opal Stones Captured In Prong Setting Versatile Jewelry Can Be Worn As Captive Bead Ring, Septum Jewelry, & Cartilage Earring Ring Thickness : 16Ga | 1.2Mm Ring Diameter : 3/8" | 10Mm Opal Size : 1.5, 2, 3Mm Material : 316L Stainless Steel, Zinc Alloy, Synthetic Opal *Sold In Singles