High Hardness Stainless Steel : This ruler is built to last, with high-quality steel that resists wear and deformation, ensuring its reliability over time. Laser Fonts : The indelible markings provided by laser engraving maintain their clarity through years of use, keeping your measurements precise. Dual Angle Design : Perfect for carpentry and diy projects, the dual angle capability allows for measuring both inside and outside angles effortlessly. 90 Degree Square Ruler : An indispensable tool for achieving accurate and square layouts, ideal for woodworking tasks. Red Black Color Mark : The color contrast between red and black markings enhances readability, making it easier to take accurate measurements. For the perfectionist in you, this high hardness stainless steel ruler offers unparalleled durability and precision. Its dual angle design and laser fonts make it a versatile and reliable choice for any woodworking endeavor.