The product description 1. Specially designed for collars, the upgrade is particularly suitable for dog and cat collars. It is a safer and stronger choice than the normal hanging bracket for pet collars. 2. [Easy to Install and Carry] The case can be used for a dog/cat/pet ring holder, no additional key chain or keyring is required. Take whatever you want. More suitable for pet collars to prevent pets from getting lost. 3. The Air Tag protective cover is made of soft silicone, which is waterproof, non-toxic, comfortable, anti-scratch and long service life. Best design for pet collars. 4. [No Signal Blocking] Specially designed for, high quality silica gel protects against scratches and collisions. Without signal protection, the tracker works as usual, no longer worry about finding your beloved pet, backpack, etc.