Quick Square Includes - Scribe Notch Graduation Marks 1/8 in Square Size 10 7/8 in Square Material Aluminum Graduation Marks - Base 1/8 in Graduation Marks - Blade 1/8 in Specialized Scales Hip and Valley Rafter Scale System of Measurement SAE Square Type Quick Edge Style Square Features Common Jack and Hip and Valley Scales Finish Black Graduation Color Yellow Numeric Marks Inches Square Color Black