Empire 1140 Framing Square, Professional, Body Size: 24 Inch Length X 2 Inch Width, Tongue Size: 16 Inch Length x 1-1/2 Inch Width, Thickness: 1/8 Inch, Aluminum, Brushed, Graduation: 1/8 Inch, 1/10 Inch, 1/16 Inch, Measuring System: Inch