I was looking for a tag that would fit the very small collar of my five pound toy poodle and this did the trick. The concept of putting the tag on the collar is great - now she can't chew it and make it unreadable. It is easy to read. To match the curvature of the collar, I was able to easily bend it on the edge of a table with good results. I can't speak to durability yet, since I just bought it. I will be buying another one to fit her training collar, which is a bit wider. This product was perfect for my needs!