soda-lime glass and zinc alloy construction of Mini Jar Keychain long-lasting use for various creative or storage needs. Compact 22x40mm size of Tiny Bottles makes it a convenient accessory to carry around, fitting seamlessly into daily routines or craft projects. Clear soda-lime glass body of Mini Glass Bottles Keychain allows easy visibility of internal contents, ideal for filling with colored sand, sequins, or other DIY materials. Secure silver metal screw cap of Mini Glass Bottles creates a tight seal, effectively preventing leaks of liquids or small items inside. Integrated keychain ring on the zinc alloy cap of Tiny Jar ensures effortless attachment to backpacks or key rings, enhancing portability and reducing loss risk.