Integrated Design: Compared with other collar, Furrigo integrated airtag dog collar holder is perfectly compatible with Apple Air Tags. No need to purchase an additional AirTag collar holder to save you time and cost! | 100% Waterproof & Dustproof: The fully enclosed structure with waterproof and dustproof capabilities, adding an extra layer of protection to your pet's tracking device, prevent your AirTags from water, dust and damage. | Ultra-Durable & Soft: Our durable dog collar is designed to withstand the wear and tear of everyday adventures, interior padding guarantees your pet's comfort, while the heavy-duty construction ensures long-lasting use for active dogs. | Safety Reflective Design: Reflective stitching on the GPS dog collar improves visibility at night. It can be conspicuous even in dim environments to ensure safety when walking dogs, and the buckle can be released quickly in case of emergency. | Wide Range of Sizes: Adjustable AirTag collar is available in 4 sizes. (S=10.75-14'', M=12.5-17.3'', L=14.5-19.8'', XL=15.5-22'') Please measure the circumference of your puppy's neck before purchasing. Package contains: 1* Apple Air Tag dog collar, 1* screwdriver (AirTag is NOT INCLUDED)