I wasn't expecting much but I was very pleasantly surprised by the accuracy of these levels. not only on the leash, but also on the feet. I have a few long and long levels that I don't really like using for grout and concrete, and they worked great (with a straight edge, of course) for dirty work (they're basically cheap enough to be "thrown") . - ways"). And since I'm always losing line levels, it's nice to have a pack of six. I just ordered a pack for a friend who will giggle and "haha" when he gets them , but he will change his tune when I'll try it, I know I'll end up buying more of it.