Features: High Quality Material: Made of heavy-duty Aluminum Alloy, solid aluminum alloy construction for durability. Easy to Adjust: When in use, it can adjust to the required angel, tighten the nut positioning, press the middle adjustable lever to achieve precise positioning. Multipurpose: with adjustable-design, can be used as a-saw guide, bevel or protractor. Convenient to-hang and store when not in use. The edges and corners of each triangle are polished by-special craftsmanship, so that it is-smooth and does not hurt your hands. Suitable for determining and marking angles and making square cuts. Clear Scale: laser-scale, clear and wear-resistant. Package Includes: 1x Triangle Ruler Specifications: Material:Stainless Steel Size:As Picture Shown note: .Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. .Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings.