12" Architectural Scale Ruler, Aluminum Scale, Triangular Ruler, Scale Ruler for Blueprint Imperial Measurements for Architects Engineering Artists, Draftsman Drawing, Laser-Etched Markings.(Black)

Super easy to read and measure blueprints, the three sides design makes it so it doesn’t roll off the page and quality is definitely there.

As far as I could tell, using another high-quality measuring device, the markings are accurate. They are not just painted on, but they are etched into the metal. The manufacturing of the ruler appears to be of high quality, and I do not think that there is anything that I could accidentally do that would damage the integrity of the ruler.

Good quality, easy to read scales, well packaged. Fair price, and quickly delivered.

Well built for drawing on grid paper

Made of nice lightweight aluminum. I like the blue color and the white lines stand out nicely.

Very well built. High quality.

I cannot attest to the accuracy of the scales as I bought it for use in fine trimming batting in quilting seams after I saw a hint using this type of ruler. It works great for that purpose as it will not nick from a rotary blade. The price was right and was MUCH less than a specialty quilting tool.

I purchased this so I could do floor plans and furniture design. It has become indispensable for design and layout, allowing one to determine definitively beforehand what will comfortably fit into a given space, as well as how much material is needed and how much will be left over. It doesn’t come with any instructions, but I watched a 5-10 minute video online and haven’t had any problems since.