Koala Tools | 30-60-90 Triangle Ruler | Clear, Plastic, Pocket-Size 5-inch Ruler
Handy straight edge for sketching on-the-go in journals, notebooks or sketchbooks
Features a built-in 180 degree protractor with arc cut-out
30mil Plastic Clear Core material is flexible but firm
Use as a quick pocket square
Stencil includes cut-outs for 30-60-90, 60-60-60 and 45-45-90 triangles
Proudly Made in the USA