Birthstone Spacer Bead Charm (May Emerald) Quantity: 1 Charm Material: Zinc metal alloy +Rhinestone, Silver Plated Metal Base Size: Approx: 11mm, Hole size: 4.7mm Slide on core Not Threaded. Thickness: 5.8mm Fits: All major Brand Bracelets, such as Pandora, Troll, Chamilia, Carlo Biagi, Zable, and other add-a-bead bracelets. European May Birthstone Spacer Bead Charm for Snake Chain Charm Bracelet