European Rn Registered Nurse Caduceus Charm Spacer Bead for Snake Chain Charm Bracelet Quantity: 1 RN Nurse Charm Slide on Bead Material: Zinc Metal Alloy Size: Hole of the charms is 5.7 mm slide on core (not threaded) Fits Pandora, Troll, Chamilia, Carlo Biagi, Zable, and other add-a-bead bracelets. Also 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.