Features 【Aluminum Alloy】This woodworking triangle ruler is made of aluminum alloy die casting, which has excellent oxidation resistant, rusts resistant, high hardness, no breakage, and 7 inch triangle ruler has long service life. 【Clear Scales】The aluminum speed square has a matte finish to prevent dazzling. The set square lasers etching scale provides you with high accuracy and readability, and greatly improving the measurement efficiency. 【Versatile Usage】The metal rafter ruler can be served as a protractor, saw guide, woodworking compass, triangle ruler, and frame ruler, and carpenters square is suitable for various home renovation and woodworking projects. 【Easy to Use】With exquisite workmanship, this rafter square has flat tangents, so you can easily make the ruler level with the wood, forming a straight or diagonal line proportional to the edges of the wood. 【Safe and Practical】This 7 inch roofing square has a simple structure and lightweight design, and can be hung and stored when not in use. With glossy and flat appearance, and tri square tool does not harm your hands. 1. Aluminum Alloy: This woodworking triangle ruler is made of aluminum alloy die casting, which has excellent oxidation resistant, rusts resistant, high hardness, no breakage, and long service life. 2. Clear Scales: The triangle has a matte finish to prevent dazzling. The lasers etching scale provides you with high accuracy and readability, and greatly improving the measurement efficiency. 3. Versatile Usage: The metal rafter ruler can be served as a protractor, saw guide, woodworking compass, triangle ruler, and frame ruler, suitable for various home renovation and woodworking projects. 4. Easy to Use: With exquisite workmanship, this rafter square has flat tangents, so you can easily make the ruler level with the wood, forming a straight or diagonal line proportional to the edges of the wood. 5. Safe and Practical: This metal triangle ruler has a simple structure and lightweight design, and can be hung and stored when not in use. With glossy and flat appearance, and does not harm your hands. Specification: Item Type: Woodworking Triangle Ruler Material: Aluminum Alloy Measuring Length (Metric): 17.78cm (7 Inch) PackageList: 1 x Woodworking Triangle Ruler Notice: There is a slight error in size. Package List 1 x Woodworking Triangle Ruler