Westcott Finger Grip Ruler, Smoke Plastic, Inches and Metric, 12-Inch  (00402) Imperial scale in 1/16 of an inch as well as the metric scale in millimeters Features a raised center finger grip for easy handling Smoke Grey translucent color allowing for viewing through to the pa Durable plastic 12" ruler Numerals and graduations are sharply delineated Perfect for use in the home, office or classroom