PERFECT FIT: We specially designed this case cover for 2021 AirTag, which perfectly fits the size of new Apple tracker. Easy to install the finder device and there is no possible to drop out from closed protective cases. DOUBLE INSURANCE : This protective case for AirTag 2021 has anti-lost double locks .The silicone buckle is ultra elastic and durable. It is tested to survive even rigorous use. Just snap the button and double fasten it with the rubber ring behind. Then it will be firmly attached the pet collar and you should never worry about your Air Tag falling off! COMFORT WEARING FOR PETS : Soft Silicone Cover for AirTag is Made of high quality soft silicone,this Air tag silicone case give you a silky soft touch feeling. This buckle desgin fits perfectly to the universal pet collar size. will never chew or play with AirTag again. ZERO SIGNAL LOSS: With the state of the art design, it is easily accessable to all functions of AirTags without any interference from the silicone case.