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!

Scale ruler size: It's 30 cm/12 inches Exact correct scales: 1:100, 1:200, 1:250, 1:300, 1:400, 1:500. Material: It is made of high quality and solid ABS. The unique triangular shape makes it easy to grip and hold when drawing lines or cutting out patterns. Easy to read measurements Solid construction and precise performance GREAT tool for architects, engineers, draftsmen, builders, roofers, teachers and students, etc. --That's what you get.