Brushed aluminum professional square features deep stamped graduations, numbers and rafter tables for a better and longer lasting visibility. Aluminum construction will not rust or corrode. 1 year limited warranty. No. 1140: Tongue Size: 16 In. x 1-1/2 In., Body Size: 24 In. x 2 In., Graduations: 1/8 In., 1/10 In., 1/16 In., Material: Aluminum, Pkg Qty: 1