Multi-Angle Measuring Ruler

12-sided angle measurement is made of metal. When using, just adjust the six metal knobs to the desired shape, and then lock it, Then install the ruler on the material that needs to be cut, you can quickly draw the size and cut, thereby saving valuable time and improving work efficiency and productivity. It is suitable for woodworking, brick, tile, wood, glass, stone, laminate, construction and engineering projects and more!