【COMPATIBLE】The Air tag cat collar holder is professionally designed for Apple Air tags 2021, so you could hang it to the 0.3-0.6 inch cat/small dog's collar easily, which keeps the Air tag stays with the collar snugly, to avoid the drop and unnecessary drag. 【COMFORTABLE FOR CAT/SMALL DOG】Your pets will feel uncomfortable if something is hanging and shaking under the collar. BUT this one will solve all of its concerns and make your kitten/small kitten feel more at ease when running and won't leave any room to chew. 【PREMIUM MATERIAL】Made of eco-friendly flexible and soft liquid silicone, it is very easy to Clean, Waterproof, Anti-fingerprint, Scratch-resistant, and Drop protection performance. 【EASY TO USE】This Air tag Cat Collar Charms Holder features an independent design to be easy to use under the Cat / Small Dog Collars and pet loop holder, also it could keep your air tags stay closed and avoid the Air tag case sliding out accidentally. 【USE OCCASION】The ID Tags & Air tag Cat/Small Dog Collar Accessories is a two-way opening design so that you can attach it to child's schoolbag, small dog/cat collars or small animal pet loop holder, Collars, Harnesses & Leashes and more. Easily keep track of anything you want.