Compatibility Only applies to AirTag 2021, which perfectly fits the size of the new Apple tracker. The exclusive lightweight accessory fits the device perfectly and locks well, don't worry about slipping and falling during use. Note: Suitable for necklace or backpack strap with width less than 0.47 inch. Protective functionSilicone case protects the entire AirTag 2021 tracker from all sides in case of falling. It also effectively prevents rain and dust from entering and being scratched. Small in size, comfortable and convenient to carry, only increases a little weight. We design silicone cases to provide professional protection for air tags. Unique DesignThe front side with innovative hollow-carved pattern design makes your airtag sounds louder compared to other airtag cases which with full coverage on the front side, the signal transmission is not affected at all, allowing you to find your pets or items easily. Premium Silicone MaterialAirTag soft silicone case is made of high quality soft silicone, this Air Tag silicone case gives you a silky feeling to the touch. Don't worry about anything discordant. The slim case with the right size does not need to take up much space and is easy to install. Wide Use Occasions The design of this product can reduce the likelihood of losing the protective sheath. It connects with bag, cat, dog, luggage, pet collar and child socket which gives more help in your life. (Notes: Tracker is not included in this order.) Suitable for collar or backpack strap with width less than 1.2cm. You can arbitrarily match the protective cover on your favorite collars. You no longer have to worry about losing your pet. The compact size allows you to take it with you when traveling. This Airtag protective case with locator can be put on the bags of parents or children with dementia to prevent accidental loss of the elderly or young people. The size of the product can be perfectly compatible with Airtag. You can install it quickly. The back side with full opening design makes it easier and faster for you to put in your airtag. This case is a silicone case, so it will be anti-fingerprint and anti-dirt. THE SIZE: Outline size: 63*36*10mm The package contains: 2 pieces. If you have any questions, do not hesitate to let us know. We will give you a satisfactory answer within 24 hours and solve the problem for you. < br/>