Transparent Grading Ruler B-95 is a lightweight, clear plastic ruler which makes it easy to see your work through the ruler. The inch scale on one edge is calibrated to 1/16th of an inch while the other edge of this clear ruler has a 48 cm metric scale. There is also a "0 centering scale," so you can measure equally left and right from a centered starting point. Beveled edge graph ruler with purple lines - 18" x 2". Priced per ruler.