These number charms are made of alloy metal with smooth surface and edge, easy to customize. Hole diameter: about 2.5mm /0.1inch. 15.5mm/0.6 inch length of each number. These number charms are easy to use, design with hole for chain, string, cord, etc.They can be applied for kinds of decoration or DIY gifts for Christmas Halloween and birthday, etc. Perfect for arts and crafts or jewelry making projects, such as earrings, charm bracelets or necklace pendant, etc. Great ideal for personalization. Package includes: 50pcs x Number 1 charms pendants. These number charms are made of alloy metal with smooth surface and edge, easy to customize.