Well these bench angles are really cool, I got them as a birthday present, the first set went back because the small one wasn't square. and I mean EVER! Rschunimagu. So I figured they couldn't be like that and I've had some of their products before with no problems. Revain sent another set and it was otherwise perfect. They work great, I don't really use all the features but I don't need them, I need to check the square but I find more and more uses for them every day. Great little product