Transparent to allow for easy viewing to the page. Accurately scaled in 1/16" on one side and millimeters on the other. Features raised beveled edges to eliminate smearing. Extra margins at the ends for clear starts and stops. Plumb lines at ends aid in drawing or checking right angles. Hang-up hole. Suitable for use in the home, school, shop or office. Numerals and graduations are sharply delineated. Scratch-resistant ruler.