Pro Jewelry "21st Birthday Dangle" Charm Bead for Snake Chain Charm Bracelets Quantity: 1 Bead Size Hole is 4.5mm slide on Cores (not threaded) Fits: All major Brand Bracelets, such as Pandora ,Kay's , Troll, Chamilia, Carlo Biagi, Zable, and other add-a-bead bracelets.