Empire Aluminum Professional Square, 16" x 24", 1/16" Graduations, Aluminum/Black: * Know all the right angles when you choose this professional-grade, standard-design L square * Deep-stamped graduations, rafter tables and conversion charts keep you in the know * Corrosion-resistant, heavy-gauge aluminum provides excellent bend resistance * Punched hang hole enables pegboard storage * Compatible with Empire stair gauges (sold separately) * Square Type: Framing * Blade Length: 16" * 24" * Material(s): Aluminum * Finish: Brushed