• Dimensions - 40 Inch Lightweight aluminum Flexible Rule is easy to shape and holds any curve firmly for accurate drawings.
• Durable Material - Made from premium materials that won't warp over time for long-lasting reliability and use.
• Convenient Operation - Inking edges for pen and marker use and flat edges on both sides for easy pencil drawing.
• English and Metric Graduations - Graduated in both English and metric. The inch graduations in 16ths and 32nds are color coded black, while Metric graduations in mm and cm are color coded red for quick individual identification.
• A Professional's Choice - Alvin has been the professional's choice for drafting tools and drawing supplies for over half a century. Since 1950, we have brought quality and value to our customers. Our tools help bridge the gap between ideas and innovations. We are known for our wide selection of high quality tools at a fair price.

Proudly Made in Taiwan