Anti-lost design: This Airtag holder case uses a keychain made of 28 stainless steel wire cables and a hexagonal screw locking design to prevent your Airtag from being damaged and lost. Note: Airtag is not included. IPX8 waterproof performance: The Air tag holder case is made of high-performance TPU shell and embedded TPU transparent front cover, providing good sealing with excellent durability and protection. Ensure that it remains intact even in harsh conditions. Wide application: The soft and slim stainless steel wire braided cable keychain can be easily linked and fixed on luggage, dog collars, keys, backpacks, bicycles or various valuables. Convenient to track your valuables anytime, anywhere. Easy installation: Insert the hexagonal wrench into the screw of the shell and turn counterclockwise to open. Tighten clockwise to close. Just open the holder, put in the Airtag, pass the cable through the item you need to link, and tighten the screw with the provided hexagonal wrench. After sales service: Dear buyer, upon receiving our product, please check if the accessories are complete and install and use the product to see if there are any defects. If you find any missing accessories or defects in the product, please feel free to provide us with feedback and we will solve the problem for you as soon as possible. 1