Aluminum Alloy Triangle Rulers 90 degrees 45 degrees Set Square 7in Black Metric Square Ruler Professional aluminum triangular ruler, accurate and convenient to measure, is a carpenter& 39;s standing tool. Features:The scale is clear and does not wear easily.Fine quality aluminum alloy material, high hardness, strong toughness, not easy to rust.Simple operation, comfortable grip, ruler surface with conversion table.Humanized design, beautiful and generous.Thickening treatment, wear-resistant and corrosion-resistant. Specifications:Main color: blackMain material: aluminum alloySide length: 262 * 185 * 185mm / 10.3 * 7.3 * 7.3inPackage size: 200 * 200 * 30mm / 7.9 * 7.9 * 1.2inPackage weight: 233g / 8.2ounce Package list:1 * Triangle Ruler