CharmSStory 925 Sterling Silver Simulated Birthstone Charms Synthetic Crystal Bead For Bracelet Metal: 925 Sterling Silver,High Quality Synthetic Crystal The Hole Size is about 4.8mm~5mm, compatible with European bracelets. Dimensions (mm):11.99*7.22*11.99 Find a special gift for a loved one or a beautiful piece that complements your personal style from CharmSStory. If you have any additional questions or concerns, please feel free to contact us again and we will be happy to assist you further.