BronaGrand Triangle Ruler Square Set, 30/60 and 45/90 Degrees, Set of 2

They are a nice size and heavier duty than I was expecting. If you're thinking about it, just get them you won't be disappointed.

I found that the price for this item and the fact they had it in stock pretty much forced me to buy it from Amazon vs. a traditional retail brick and mortar seller. Although I feel bad for the other merchant, it was good for me as a customer. This product does the job of creating straight lines with precise measurements. It's a trianble with a protractor, so you can do triangles and circles too and know what angle you are designing. My daughter used this for her Landscape Architecture classes.

I bought this for making neat boxes on my notes pages. Works well. I would have preferred to just buy the 1 triangle, but it was still a good price.

This set held up better than I expected. I bought it at the start of college and used it heavily throughout my architecture and math courses—lots of drafting, sketching, measuring, and note-taking. The markings and numbers never faded, even with near-daily use, and everything stayed precise and easy to read. The plastic is sturdy, not flimsy like some cheaper ones I’ve seen, and it always gave me clean lines without slipping around. It’s one of those tools I just kept reaching for, and years later, I still have it in my drawer. For the price, the quality is honestly impressive. It did the job well, and then some.

Love it! Perfect and smart placement of parallel rules and angular rules. I use it to draft fairly complicated 3D polygons and other 3D line arts.