Cool little square. I got to try it out working on doors on a historic house. Great for working on trim and intricate stuff too. Easy to read, I used the ruler on the square multiple times instead of pulling my tape out, I can see myself doing that a lot from now on. It’s pricey yes, but it’s high quality. Am sucker for a nice tool, great addition to my bag of tricks . I’ll probably end up getting the 7” as well