1 PCS Architectural Triangular Scale Ruler Metric 1:100, 1:200, 1:250, 1:300, 1:400, 1:500 Standard 30 CM for Architects, Students, Draftsman and Engineers - Green, Red, Yellow

All-in-one scale: This metric scale ruler includes 6 of the most commonly used scales: 1:100, 1:200, 1:250, 1:300, 1:400, 1:500. No need to waste time figuring out how to measure each increment. Scales are labelled in two ways for easy reading from right to left or left to right. Lightweight & Portable: Length: 30cm, the scale ruler is solid, lightweight, and durable, it is easy to carry and store Precise Scale: New updated triangular scale ruler with supreme accuracy, suitable for engineers, professors, hobbyists, manufacturers. To achieve the precision your work deserves, this ruler is the perfect tool. Wide Use: This ruler with 3 different coloured grooves allows you are able to quickly and accurately select your desired scale. A useful measuring tool for any project, ideal for blueprinting, professional applications, architecture, civil engineering, drafting and technical illustration. High Quality: This architect ruler is solid and sturdy is perfect for long term use. If you're not completely satisfied with your purchase, simply contact us!, Manufacturer: SLOWE