The ProTriangle combines the practical uses of the Standard English ruler, a setsquare, and a protractor into a highly functional single tool. The ProTriangle is made of sturdy transparent acrylic, allowing its user to efficiently utilize the clear and concise measurement markings.

The ProTriangle has wide appeal and application. From architectural designs to elementary geometry homework, the ProTriangle simplifies the drawings of diagrams, tables, geometrical shapes, engineering plans, technical drawings, art projects, construction plans, and much much more. 

We are confident that the ProTriangle will be as important to your tool box as it’s been to ours.