Strong Material: Made of grade materials, it provides hardness, rust resistance, and wear resistance, ensuring longlasting use without degradation over time. Precise Metric Scales: Featuring a precise design for metric measurement, this triangle ruler provides clear, accurate scales to enhance work efficiency. Contrast Legibility: With a blackandwhite design and contrast display, it offers unmatched readability and ease of use in various lighting conditions. Compact Size and Practical Function: Sized for comfortable handling and precise measurement, supporting reliable performance across tasks. Versatile Use: Ideal for civil engineering, interior design, teaching, drawing, and more; emphasizes precision and functional practicality. Use scenarios Civil engineering: site layout, blueprint checks, and measurement verification on plans. Interior design: floor plan drafting, grid alignment, and dimensioning of spaces and furniture. Teaching and drafting: geometry lessons, student projects, and technical drawing practice.