I can't believe I've never had these before! it makes cutting floor boards so much easier, around doorways especially it's normally hard to get a tight fit with all the angles, but having this gauge enables me to trace exactly the shape I need onto the board. They are pretty stiff, but that means it holds its shape. there appears to be an adjustment screw for the tightness but I haven't had to use it yet. I can't stress enough how much time and mental anguish this saves me!
Good quality my husband does a lot of fabrication work as a mechanic and he was very excited to get these he says it makes measuring and cutting things to exact fit way easier and a great added tool for his toolbox
Photos show the time saving when ae has to do the shape in a rachola or in the parquet, good product, I recommend