This hard-grade aluminum construction ruler features a .080" thick blade that has been polished and anodized. One edge is graduated in 8ths to the inch with millimeters on the other edge. The reverse side of the stick provides metric conversion tables in length, area, mass, volume and temperature. Convenient hang holes at each end. The ruler (1-1/8" x 39-3/8") weighs only 5 oz.