GoTags Engraved Airtag Dog Collar Holder, Personalized Airtag Case for Pet Collar, Up to 4 Lines of Custom Text, Airtag Slide On Tag for GPS Dog Tracker, Track Dogs with iPhone (Personalized, Small)Works with most pet collars flexible openings accommodate different collar sizes. Large size fits collars 3 4 inch to 1 inch wide, while Small size fits collars 5 8 inch wide. Keeps Airtag safely secured to the collar, ensuring it stays in place. GPS Tracking & Alerts Monitor your pets location anytime and set alerts if they venture outside. DOES NOT INCLUDE AIRTAG Personalized for Safety Customize with up to 4 lines of text so your pets Airtag holder