2Pack Cat Collars: 1*Reflective strap collar and 1*reflective paw print collar. Made of soft nylon material. The reflective design lets your cats can be seen clearly in dark environments (both breakaway clasp designs) Airtag Tracker Collar: Put an Airtag into the colorful silicone holder with a collar to build a tracker. Locate your cats easily on the "Find My" app on iPhone (Airtag not included). Breakaway Clasp: Both the collars come with a breakaway safety buckle design, the buckle will quickly release when pulling with force, safer for your pets when met dangerous situations. Airtag Holder: The collars come with 2 airtag holders, waterproof and shockproof, to protect the airtag meanwhile playing a decoration role. Specially designed for pets small collars, slide-on installed, no reaches from your pets. Adjustable Collar Size: Adjustable collar length suits pets' neck sizes from 8.7 to 13.8 inches, great for most cats puppies, and small pets. Easy to find the most comfortable size for them.