Clear see-through ruler offers a crystal-clear view of documents while measuring and marking. Contains a standard scale on one edge and metric on the other for the ultimate in versatility. Durable and sturdy construction to ensure it lasts a long time. A valuable tool in the home classroom office warehouse store or at the job site. Sturdy plastic for continued use. Ruler Type: Standard/Metric; Length: 12 ; Standard Scale: 1/16 ; Metric Scale: Centimeters; Millimeters.