Nipple Ring / Captive Bead Ring Multi-Color Rainbow Rhinestone Captured In Decorative Setting Versatile Jewelry Can Be Worn Many Places Easy To Wear And Remove With Precise Dimples Combined Size Of Opal & Cz Is 6Mm Ring Thickness : 14Ga | 1.6Mm Ring Inner Diameter : 9/16" | 14Mm Ball Size : 6.5Mm Available In White, Pink, And Aqua Material : 316L Stainless Steel, Rainbow Rhinestone