* Made of high-quality aluminum alloy, this protractor is stronger and more durable than traditional plastic ruler protractors. It is scratch-resistant and built to last. * Place the protractor on the work area, slide the ruler into the desired position, and tighten the screw to secure the angle. Achieve precise measurements and easily transfer them to any material. * The multi-angle gauge slides and locks at any desired angle, eliminating the need for repeated measurements. The four-sided ruler functions as a reusable template for a wide range of applications. * No need to create a new template for each task—reuse the same angle repeatedly. This protractor helps save time and effort on the job. * Ideal for use with bricks, tiles, wood, stone, laminate, and other materials. * Features laser-engraved markings on the aluminum alloy surface for long-lasting visibility and accuracy. Foldable design allows for compact storage. Equipped with a convenient clamping mechanism for one-handed operation. * Package includes: 1 pc protractor