"* Made of high quality aluminum alloy, this protractor is superior and stronger than traditional plastic ruler protractors. It is scratch resistant and extremely durable. * Place the protractor on the work area , slide the ruler into the desired shape and tighten the screw. There you have perfect measurements, now you can transfer and track them on any material. * Multi-angle gauge slides and locks on any The desired angle, saving time on repeated measurements. The four-sided ruler serves as a reusable template for endless applications. * No need to create a new template for each new job, and you don't need to remeasure Use the same angle over and over again - the protractor saves you time and effort. Work hard * MULTIPLE APPLICATIONS: Great for bricks, tiles, woods, stone, laminate and any other material * Using laser engraving technology, the angle is directly engraved on the aluminum alloy ruler, which is not easy to wear. It is foldable for easy storage, and uses a unique clamping mechanism for one-handed operation. * Package includes: 1PC * Protractor"