I wasn't expecting much but I was pleasantly surprised at the accuracy of these spirit levels. not only on the leash, but also on the feet. I have a few long and long layers that I really like and don't really like using with grout and concrete, and they worked great (with a straight edge, of course) for dirty work (they're basically cheap enough to do it be). "thrown away""). -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, if he tries it i know i will end up buying more of it.