Dolphin Bead Spacer Charm for Snake Chain Charm Bracelet Quantity: 1 Bead Material: Zinc Metal Alloy Size: Hole of the charms is 4.5 mm slide on core (not threaded) Silver Base Metal Fits Pandora, Troll, Chamilia, Carlo Biagi, Zable, and other add-a-bead bracelets. Dolphin Bead Spacer Charm for Snake Chain Charm Bracelet