" Heart Dangle Key to My Heart " Charm Bead For Snake Chain Charm Bracelet Quantity: 1 Bead Size Hole is 4.5mm slide on Cores (not threaded) Fits and compatible with Pandora, Biagi, Chamilia, Zable, charmed memories and Troll Chains Material: Zinc Metal Alloy Heart Dangle Key to My Heart Charm Bead For Snake Chain Charm Bracelet. Fits and compatible with Pandora, Biagi, Chamilia, Zable, charmed memories and Troll Chains.