T-Square Base Length 6 in Base Width 1 in Includes Measuring Blade Length 12 in Blade Width 1 in Blade Material Plastic Graduation Mark Style Printed Graduation Marks - Base 1 cm 1/16 in Graduation Marks - Blade 1 cm 1/16 in Specialized Scales Not Applicable Base Material Plastic System of Measurement SAE Square Type T-Square Coating Not Applicable Edge Style Square Features Easy to See Through Finish Matte Graduation Color Black Straightness Tolerance Not Applicable