1.Integrated Design: The integrated airtag dog collar with holder is designed for the Apple AirTag. The integrated airtag holder is perfect for AirTags. It will effectively prevent the AirTag from dangling or falling off. (Note: AirTag is not included.) 2. : This air tag dog collar holder is made of IP68 professional waterproof material. With fully sealed design and builtin waterproof ring, it is waterproof and dustproof, protecting Airtag even when your dog is playing in the water, keep track of your furry friend worry. 3.Comfortable : Our tactical dog collar made of premium 1000D nylon, with soft and breathable lining it is comfortable and will protect dog's neck well. Designed for medium to heavy duty large dogs, it is durable, wearresisting and won't easily break. 4.Control Handle: This military dog collar is equipped with a control handle. You can easily control your dog, when training, hunting, hiking, jogging, camping, running. Especially suitable for many medium and large dogs, like Alaskan Malamutes, German Shepherds, Dobermans, Border Collies, Labrador, Rottweilers, Great Danes, Golden Retrievers, Husky, etc.