[Compatible with 2021 AirTag] Suitable for 2021 AirTags. Designed specifically for AirTag and perfectly paired with AirTag. Don't worry about AirTag slipping off. (Note: AirTag is not included.) Our silicone sleeve is made of the latest silicone material, which has super elasticity and will not deform no matter how you pull it. Comfortable to use, sweat resistant, scratch resistant, and durable. A smooth surface allows you to quickly wipe or rinse away dust and dirt Anti loss keychain design : The Airtags watch case is equipped with a sturdy metal buckle, making it easy to open/close the spring ring buckle, which helps to quickly lock/unlock. You can attach your AirTag to what you want to track. High quality electroplated keyring, will not rust. Zero interference : The silicone AirTags fixed sleeve will not interfere with your AirTags function. It will not affect the signal of the AirTags tracker or diminish its elegant charm. This AirTags. Performs well in both hot and cold environments. Suitable for various occasions : Each packaging comes with 4 different colors of AirTag phone cases and 4 keychains. Bind it with most things. Such as backpacks, suitcases, wallets, huskies, kokies, rugged terrain, bicycles, or being clipped to a pet dog or cat collar.