680-45-300 Features: -High tempered aluminum for maximum durability.-Deep, long-wearing graduations for easy reading.-Protective lacquered coating resists corrosion.-Increment @ Scale: 1/8 in @ 1 in.-No. of Scales: 1.-Material: Aluminum.-Measuring System: Inch.-Type: Framing Square.-Quantity: 6 per box.-Price is for 1 Each. Color/Finish: -Useful tables and information stamped into square, such as: new lumber scale, decimal equivalent table, metric conversion table, formula for squaring a foundation, 45 , 60 , 30 angle markings, volume and area formulas, wood screw gauge table, nail sizes (common and finish), quantity per pound and depth scale. Dimensions: -Blade Length: 24 in.-Blade Width: 2 in.-Beam Length: 16 in.-Beam Width: 1 1/2 in.