Size: 1.1 *1.1 cm; Weight: 2.1 gram. Diameter of the charm hole: 0.19 inch (about 4.8mm). The bead charms are compatible with European or other styles of charm bracelets.925 Sterling Silver & Plated Platinum, this silver charm is Nickel-free, Lead-free, Cadmium-free, Hypoallergenic.