【COMPATIBLE】The AirTag Dog Collar Case is professionally designed for Apple Air tags 2021, So you can easily hang it on pet collars that are 5/8"-1" wide. It will not affect your pet comfort due to hanging and shaking. (Note: AirTags and collar not included.) | 【ROTATE LID DESIGN】This Airtag dog collar holder features a rotate lid design to be easy to use under the cat & dog collar. Also, it is easier to install and remove AirTag. 【NOTE】 TO PREVENT DROP-DOWN ACCIDENTS, PLEASE SCREW DOWN THE UPPER LID TIGHTLY. | 【WATERPROOF SEALING DESIGN】This AirTag pet holder with a new sealing structure design, add silicone pad, waterproof, dogs can swim with it. It can still keep your AirTags dry and dvoid AirTag damage due to water Ingress. Meanwhile, it has a sound insulation effect to prevent the sound of the AirTag from disturbing your pets. | 【PREMIUM MATERIAL】Airtag holder is constructed with durable plastic & silicone pad for a unique design that provides extra durability and comfortability. Safety, eco-friendly & highly durable. | 【SERVICE】It aslo helps track what's most valuable to you! -backpack/bag, child's schoolbag, Elderly, Keys, etc. PZOZ offers 12-month quality service. Package Included: 2 PCS AirTag Dog Collar Case. (Note: AirTags and collar not included)