AirTag Dog Collar Holder】Specially designed for the New Apple AirTag 2021. This AirTag Case fits perfectly for pet collar/pet loop holders within 1.02", prevents your AirTag from falling off or being bitten off. Keep accurately tracking of your beloved pet! (Note: AirTag is not included.) 【Comfortable and Secure】With considerate smooth and curved silicone shell, the AirTag collar holder won’t make your pets feel uncomfortable when wearing the collar holder for activities. The Airtag collar holder is shockproof for better signal, giving you peace of mind knowing your little guy's whereabouts. 【Truly Waterproof】The Airtag dog collar holder case comes with a TPV sealed inner sleeve for double protection against sweat, water and rain, truly 3M underwater waterproof. Perfect for everyday waterproofing and keeps your Airtag fully protected even when your puppy is playing with water. 【Durable & Safe】The upgraded AirTag silicone case is flexible and can easily fit the AirTag into it. It is completely sealed after installation, effectively preventing the AirTag from falling off when the dog is running or jogging. Provides All-around protection for your Airtag from damage. 【Wide Use Occasion】The Airtag Collar case is designed with two-way opening, you can attach it to backpacks/bags, elderly belts, kids' school bags, dog/cat collars or pet loop holders, collars, harnesses, leashes and any straps up to 1.02". The perfect AirTag collar accessories!