Westcott Engineers Ruler is engraved with clear scales and color coding that is convenient to read. Triangular structure keeps the ruler stable and flat on paper without any flexing or warping during use. This specialized ruler is perfect for measuring from reduced scale drawings and doing careful, specialized measurements. Westcott brand focuses on creating innovative designs that provide style and quality to an assortment of school, craft, and office products. Westcott Drafting and Drawing Tools are some of the finest products of their kind for students and professionals. Our commitment to meticulous quality and cutting edge innovation in measurement and art materials has earned an unparalleled reputation.