【100% Waterproof】-- This air tag dog collar holder with a fully sealed design and built-in waterproof ring. Dog can swims with it for a long time. It can keep your AirTags dry and avoid AirTag damage due to water Ingress. 【Integrated Design】-- Unlike other separated AirTag case, our Air Tag dog collar has an integrated AirTag holder, which is perfectly compatible with AirTags(1st/2nd Generation) and effectively prevents the AirTag from falling off or or dangling. (Note: AirTag is not included.) 【Premium Material】-- Tactical airtag dog collar is made of 1000D premium quality nylon fabric and strong metal buckle, very durable and wear-resistant. Soft, breathable and comfortable padded inner won't hurt dog's fur and can protect dog's neck well. 【Double Security】-- Buckle GPS tracker dog collars is designed with Velcro and quick release metal buckle dual design. Adjustable dog collars easy to put on and take off, the metal buckle can be released quickly in case of emergency, guaranteeing safety for your dog. 【Practical Design】-- Military AirTag dog collar comes with an enlarged control handle to help you control your dog well. Available in 3 sizes, fits medium and large dogs. Please follow the size chart to measure your dog's neck carefully before you place the order to ensure the collar is fit well to your dog. Tactical AirTag Dog Collar