Fairgate Heavy Duty Aluminum Straight Ruler. Fairgate straight rules are manufactured of the highest quality hard- tempered aluminum to provide years of reliable service. Calibrated on two edges on top face; backs are blank. Non-rusting, easy to read. Strong as steel. Accurately graduated in 1/16", 1/8", 1/4", 1/2" and 1" increments. Ruler width: 1.5". Ruler length: 36" Made in USA.