Product scratched after a month of use where the measurements were inaccurate or readable. I've dropped it maybe 3-4 times and the product is no longer on a flat surface. Also one side is UK which is great because it's Murrica and the other side is metric which is handy for trying to place fasteners on the header. I gave this square to the assistant because it was so lame. Yeah it looks cool it's all black and shit but if I were you I'd buy Empire Square like your buddies.