These are amazing AirTag holders. They are great for AirTags. You can attach them to anything they come in the most perfect colors. I gotta pack that has a multiple variety. They're waterproof once you snapped them on and put them on whatever that you want to track they're not gonna fall off and they do fit AirTags, but I learned. It will not fit an AirTag air tag cat collar The reason being the Pictures below will show you if it wasn't far the embedded loop that's attached to d d airTag, which is made for an AirTag collar a breakaway collar other than that these are five star across the bar you cannot ask for better than this they are waterproof, easy directions snapping on sync easy to your phone. Meaning nothing stops it. It doesn't have any problems at all. I had it all the way in and snapped except for the very top you cannot get a better than this highly recommended and I'm going to use the other ones for traveling and attaching them to other things I just have to get me some more airTags.