Compatibility: Only compatible with the 2021 AirTag. The AirTag fits perfectly snug in the silicone pocket with an easy clasp secure fitting keychain attached. (Note: AirTag is not included.) Unique Design: Unique silicone mouse ear design, elegant pastel color combinations and soft durable silicone design made for 2021 AirTag. Attachable keychain adds to accessibility allowing the AirTag to be used in many different functions. A set of 5 bundle pastel colors protective mouse ear AirTag keychain cases to meet different moods and styles. Protective: Open circular silicone case cover with raised rim for protection against scratches, hard surfaces, knicks, and bumps for AirTag daily lifestyle use. Sturdy, flexible lightweight design, with an attachable metal keychain for AirTag device. Durability: Lightweight soft silicone AirTag mouse keychain, comfortable, sweat-proof, scratch-resistant, water resistant, and durable in use. The key ring is a high- quality metal, rust resistant