[Super Hard Steel] Our keychains are made of special hardened steel for long-lasting functionality and quality [Package Includes] The package contains 400 keychains. 25mm silver keychains, perfect for crafts and homemade jewelry [DIY and Crafts] This keychain is suitable for DIY projects, keychains, and connecting earrings, bracelets, necklaces and other DIY jewelry [Easy to Use] The split double-layer metal ring can be firmly fixed, allowing you to easily add or remove keys [Widely Used] Our stainless steel keychains are perfect for storing house, office and car keys