This is a great dog ID tag. I was able to get all of my information using both sizes. Looks more like it should cost $20.00. I can't find any reason to not be happy. These should last for years. They say so on their web site and I believe it. The rectangle size is the best way to go here. They laser the characters into the tag so it should not just rub off in a couple of months. This is a good way to go.