Pro Jewelry .925 Sterling Silver " Amethyst " Cubic Zirconia Round for Snake Chain Charm Bracelets Quantity: 1 Bead Material: S925 Solid Sterling Silver slide on Core 4.5mm (not threaded) Fits: All major Brand Bracelets, Pandora, Biagi, Chamillia, Zable, Kay charmed memories and other add-a-bead bracelets.