Review on AnNafi Machinist Square Set: 4-Piece Precision Industrial Set for Accurate 90° Right Angle Measurements. by Chris Wheeler

I have to say I should have listened to the other person when they said it was some kind of square. :-(If you want some truth, these aren't the squares you're looking for. I compared them and no matter which 2 I compared, none of them were included. They're very close, but not dead. Came in Good condition filled with oil The box is a cheap wooden box with a foam mold to hold the squares The squares don't quite fit If you move them they don't rattle and they are mostly square They are good enough depending on what you're working on, but if you need high precision, use something else.