Our multi-angle measuring ruler is suitable for measuring the surface of bricks, paper, stone, tile, wood and other material. Suitable for construction workers, craftsmen AND DIY enthusiasts. Set the blocks parallel in space at ONE 90 degree angle to form ONE shaped square to align the bricks. You can then accurately measure the angle or shape you want by tightening or loosening the screws. This angle jig tool measures inches and centimeters. Our multi-angle measuring ruler has six metal buttons that can be bent at will. Simply adjust the six metal knobs to precisely create the shape you want. Measuring objects of different shapes is quick and easy Our aluminum multi-angle measuring ruler is made of extremely strong and light aluminum alloy including bolts This multi-angle gauge is more durable and sturdy than a plastic ruler. So you don't have to worry about corrosion, metal buttons have a longer life AND all parts are metal. Simply place it in the work area, slide the scale to the desired shape and tighten the screws. A great portable tool that is easy to fold up, saves space, and stores easily. One-handed operation, unique attachment mechanism.