1、Aluminum Alloy Material: The woodworking triangular ruler is made of aluminum alloy and has a matte black finish that prevents glaring. Good resistance to oxidation. 2、How to Use: The thick edge can be used directly with the saw (not included), using the scale for crossing or angled cuts, allowing you to quickly and accurately marked cut lines. 3、Not Easy to Break: This woodworking triangular ruler is thickened, corrosion proof and hard. Not easy to break and lightweight. 4、High Accuracy: The woodworking triangular ruler has a 0 to 90° extended scale with standard accuracy. The face is abrasion resistant and clear. 5、Convenient and Comfortable: Easy hanging and storage when not in use, humanized design. The angles of each triangle are polished without hurting your hands. 1 x Carpenter Triangle Square Item Type: 7in Carpenter Triangle SquareMaterial: Aluminum alloyCraftsmanship: Special process, corrosion resistance, oxidation resistance, high hardness, durableFeatures: The triangle ruler is made of aluminum alloy with a matte black finish that prevents glaring. Good resistance to oxidation, thickened, not easy to break. Lightweight and convenient.