T-Square Base Length 10 1/2 in Base Width 2 in Includes Measuring Blade Length 36 in Blade Width 2 1/2 in Blade Material Plastic Graduation Mark Style Printed Graduation Marks - Base 36 in Graduation Marks - Blade 36 in Specialized Scales Not Applicable Base Material Plastic System of Measurement SAE Square Type T-Square Coating Clear Edge Style Square Features Hang Hole Ideal for Inking Finish Painted Graduation Color Black Straightness Tolerance Not Applicable