Measure important objects easily with this triangular scale, which has three different sides for complex measuring. The white polystyrene construction of this Staedtler Mars scale ensures rugged durability and the color-coded grooves allow for fast item referencing. Features color-coded grooves to provide quick as well as accurate selection of the desired scale. Offers three sides with six different scales that feature die-engraved graduations. Made of white, high-impact polystyrene plastic. Triangular scale is ideal for engineers and is also a versatile measurement tool for architects. Fully divided scale with 10, 20, 30, 40, 50, 60 parts per inch. Get architect or engineer specifications correct with this Staedtler Mars triangular scale.