Ludwig Precision Center-Finding Straight Edge
An ideal tool for framing because you can quickly measure to the center of your artwork. English measurements feature a 12" center point on the top, calibrated to 32nds along the entire centering edge, as well as through the first 6" on the bottom edge. 24" long, 1-3/4" wide. 1.0mm thick. Made from extruded aluminum for years of long use.