Features: Achieve precise measurements with the Architectural Scale Ruler. Its solid constructions and accuratemarkings makings it a practical tool for architects, designers, engineers, and students. Crafted from aluminum, this ruler features 3 concave side , 6 commonly used scale. 1:20, 1:25, 1:50, 1:75, 1:100, 1:125 / 1:100, 1:200, 1:25. 0, 1:300, 1:400, 1:500. Perfect for architects, designers, engineers, and students, the Architectural Scale Ruler is suitable for precise measurements and drawing. Whether you're working on technical illustrations, this ruler will help you achieve accurate result. From the drafting table to various projects, the Architectural Scale Ruler is practical for different applications. Whether you're creating interior layouts and planning landscaping projects, this ruler will be your essential tool. Enhances your drawing experience with the Architectural Scale Ruler. Its lightweight , easy to read measurements, and clearmarkings ensure a smooth and efficient process. Explore your creativity and bring your designs to life with this ruler. Specifications: Material:AluminumAlloy Scale: 1:20 1:25 1:50 1:75 1:100 1:125(small scale) / 1:100 1:200 1:250 1:300 1:400 1:500 (large scale) Color:Black,Blue,RoseRedness Note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color. Package includes: 1x Scale Ruler