High-quality materials: made of high-quality aluminum alloy, high hardness, anti-rust, anti-collision, wear resistance, strong stability, not easy to break, and durable. Exquisite design: simple and stylish appearance, more convenient storage. The thick non-slip design ensures easy handling, proper size, and finger protection. Easy to use: There are dents on the surface of the ruler to make the characters clearer. The rough edge of the saw can be directly used to score materials, allowing for easily and accurately marked cuts on surfaces. Multi-function: The triangle ruler can be used as a protractor, center point finder, ruler, saw guide, picture frame guide, and straightedge, providing multiple functions. Wide range of applications: The protractor is suitable for hobbyists, engineers, carpenters, framers, roofers, interior designers, manufacturers, and artists. It is an ideal choice for various construction and decoration projects.