This triangle ruler serves multiple functions: it's a set square, protractor, line scriber, and saw guide. Features: - Application: Great tool for carpenters, construction professionals, roofers, DIY enthusiasts, and more. - Use: Suitable for determining and marking angles and making square cuts. - High Quality: Made of Aluminum Alloy Material, undergoes Electrophoretic Paint Process, offering high hardness, strong toughness, and resistance to rust. - Clear Scale: Laser Scale, clear and wear-resistant. - Double-sided Data: Features double-sided metric and inch marking lines to meet different needs. - Easy reading: Permanent graduations with clear and easy-to-read numbers. - Portable: Compact design, easy to take everywhere. Specifications: - Material: Aluminum Alloy - Optional Unit: Metric / Imperial - Optional Color: Blue / Red Package included: 1 x Triangle Ruler (Color & Unit as your choice)