Pro Jewelry Twenty (20) Gold Tone CCB Plastic Round Charm Bead for Snake Chain Charm Bracelets Quantity: 20 Beads Size Hole is 4.5mm slide on Cores (not threaded) Fits: All major Brand Bracelets, such as Pandora, Troll, Chamilia, Carlo Biagi, Zable, and other add-a-bead bracelets.