1[Aluminum Construction] This framing square is made from anodized aluminum alloy, which is rust prevention, high in hardness, not easily break or wear down. 2[Precise L Ruler] A perfect 90 degree woodworking square, ensures accurate measurement and marking for all woodworking projects, bringing accuracy to your woodworking tasks. 3[Precise and Clear Scale] The carpenter square features precise and clear scale lines, resistant to scratch. Even with prolonged use, the markings will remain distinct and readable. 4[Light Weight] The aluminum square is stable and lightweight, reducing pressure on the elbow or wrist during measurement and marking, enhancing user comfort. 5[Wide Applications] Suitable for various tasks such as woodworking, construction, mathematical measurement, handcrafting manufacturing, and more. 1 x Woodworking Square