European Key to My Heart Charm Spacer Beads for Snake Chain Charm Bracelet Quantity: 1 Lock Key to My Heart Charm Spacer Beads for Snake Chain Charm Bracelet Material: Zinc Metal Alloy Size: Hole of the charms is 4.5 mm slide on core (not threaded) Fits Pandora, Troll, Chamilia, Carlo Biagi, Zable, and other add-a-bead bracelets. Compatible fit with European style Add a Bead bracelets and necklaces brands like Trollbeads Chamilia Biagi Caprice Hallmark Connections Oriana Lovelinks by Aagard Reflections Individuality Storywheel Novobeads Storyvines DaVinci Kays Charmed Memories Ohm SimStars Brighton Zable and European.