Material and protection: Made of quality silicone with good elasticity to absorb shocks and protect the AirTag from impact damage. The hollow design allows unobstructed signal transmission, keeping the AirTag connected at all times. A protective film on the front and back guards against scratches. Design for pet collars and antiloss: Specially designed to pass directly through the pet collar and stay in place, preventing sliding back and forth. This design helps ensure the AirTag is not easily lost. Comfort and durability: Compared with cases that hang on the collar and swing, this design reduces movement, helps pets avoid bumps against stairs and the ground, and provides better protection for the AirTag. Easy installation and maintenance: Quick and convenient to install; after the first setup, little to no disassembly is required. When bathing your pet, the case can be removed together with the collar, making it worry and convenient. Use scenario: Daily pet tracking on walks or during routine activities to monitor your pet's location without compromising comfort or signal performance. Use scenario: Outdoor adventures and exploration where reduced swinging and improved protection help prevent damage during active play or encounters with stairs, furniture, or rough terrain. Use scenario: Bathing or grooming sessions, since the case can be removed with the collar, allowing easy cleaning and continued use after washing.