1.[Compatibility]: The AirTags case designed and Cut, especially compatible with Apple AirTag 2021, Released perfect fit. The case 4 packs are 4 different color combinations compatible with the Apple AirTag keychain to make your life more colorful. 2.[Shockproof Silicone Materia]: The cover bumper compatible with your delicate . The key ring is made of waterproof silicone material, which could provide a stronger buffer when bumps or drops to fully protect your . 3.[Anti-lost with Keychain Design]: This case comes with a fashionable metal carabiner is offered, so that you can easily hang the air tags everywhere, you can attach air tag collar holder to a dog /cat pet collar, your car keyring, your bag, Child's schoolbag, the valuables, and more. 4.[Easy Installation]: The exposed hole design is very conducive to signal transmission and humanized installation. Just put your label in the silicone sleeve. A precise cut-out shows the original logo of the brand. 5.[Best Gifts]: Spoil Your Loved Ones With A Great Gift: Brighten your wife's, girlfriend's, husband's, boyfriend's, or kid's day with a premium silicone holder keychain. package includes holder keychain 4 pack.