Westcott 6-Inch Flexible Metric Ruler transparent ruler allows for easy viewing through to the page. 16ths to the inch markings on one edge and millimeters numbered in centimeters on the opposite edge. Great for the office, school or home. Westcott Drafting & 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.