Feature:1. EXCELLENT QUALITY: This Rafter square is made of aluminum alloy through die casting, which is oxidation resistant and rust proof. Each square is thick, high in hardness, and not easily breakable.2. PRECISE MARKINGS: Including a 7 inch metric triangle square with a matte finish to prevent glare. The etched markings on the square include a universal rafter conversion table for easy and accurate readings.3. EXQUISITE DESIGN: The metal square is designed for easy hanging and storage when not in use. The smoothly and flat surface of the square ensures no harm to your hands during usage.4. EASY TO USE: The flat edge of the rafter square allows for effortless alignment with wood surfaces, facilitating the creation of perfectly proportioned straight or diagonal lines.5. VERSATILE TOOL: The metal rafter square can be used as a protractor, saw guide, woodworking compass, triangle square, and framing square. Suitable for woodworking projects.Specification:Item Type: Carpenter SquareMaterial: Aluminum AlloyMeasured Length (metric): 17.78cm (7 inches).Package List:1 x Carpenter SquareNote:There may be a margin of error in the measurements.