[DESIGNED FOR APPLE AIRTAG] AirTag collar helps secure AirTag to prevent it from falling or dangling. Compared to other AirTag holders, this integrated design offers a cost-effective solution without the need for additional accessories. This Apple AirTag-compatible collar provides a reliable way to track your dog safely and easily. [VARIETY OF SIZES] Adjustable AirTag collar available in 4 sizes to fit small, medium, and large dogs. (S=12-14", M=14-17.5", L=16.5-20", XL=19-21.5"). Measure your dog's neck before ordering to ensure a comfortable fit. [360-DEGREE REFLECTIVITY] Features reflective stitching and fully reflective edges for improved visibility in low-light conditions. Helps keep your dog visible and safe during evening walks, runs, or outdoor activities. [PREMIUM MATERIALS] Constructed with 1000D nylon for durability. Lined with 9mm neoprene to help prevent neck irritation during activity. The microfiber leather AirTag case provides a secure and stable fit to help protect the AirTag.