Anti-lost collar: Insert your AirTag into the collar with a holder to create a lightweight GPS tracker. You can track your pet (except AirTags) using the Find My app on your iPhone. AirPort holder: The holder for Apple AirTag is waterproof and shockproof. Silicone material prevents your smart device from being scratched. The sliding design helps keep your pet away from the specially designed small collar. Adjustable collar size: The collar length is adjustable to fit pets from 22 to 35 cm. 1 cm wide, perfect for most small pets such as cats, dogs, kittens, puppies, and Chihuahuas. Detachable cat collar: The collar features a safety buckle and a bell design. The bell is detachable with a safety buckle, which can be easily released when pulled, making it safer for your pets. Reflective nylon collar: The reflective claw pattern made of nylon is cuter than ordinary reflective tape. Allows your pet to be clearly visible in the dark and avoid accidents.