MICOO charms are made of 925 Sterling silver with 5A Cubic Zircon Stones. The hole size is about 4.6mm~5mm,Compatible with most American and European charm bracelets such as Pandora. High-quality packaging: 1 MICOO charm, 1 silver polishing cloth and 1 MICOO special gift bag. Great Gift:On Christmas, Birthday, Valentine's day, Anniversary, Thanksgiving and other days, A good gift for your Lovers, family or best friends. charms bring good luck. We offer a 30-day money back guarantee , so please contact us if you have any questions. Welcome to MICOO Jewelry Store!