Alvin 241P Plastic Engineer's Scale Ruler 12"

Pro-quality Alvin 241P triangular engineers scale ruler is made from high-impact plastic with white, non-reflecting dull-matte faces, and tapered edges. Machine-engraved graduations and color-coded furrows. Graduated in 10, 20, 30, 40, 50, and 60 parts to the inch. Alvin plastic engineering drafting scale made in Germany, includes plastic storage case.