Westcott Transparent Grid Ruler with metal cutting edge for easy cutting or smear-free inking have scales in sixteenths to the Inches. Westcott ruler is very light and flexible with zero centering scale, so you can measure equally left and right from a centered starting point. This drawing ruler is laminated for durability and the translucent color allows you to view through the page while you draw or work on an assignment. Westcott focuses on creating innovative designs that provide style and quality to an assortment of school, craft, and office products which are perfect for your drafting and drawing needs.