Drywall T-Square Base Length 24 in Base Width 1 1/4 in Includes Blade Blade Length 54 in Blade Width 2 in Blade Material Aluminum Graduation Mark Style Printed Graduation Marks - Base 1/8 in Graduation Marks - Blade 1/8 in Specialized Scales Not Applicable Base Material Aluminum Plastic System of Measurement SAE Square Type Drywall T-Square Coating Clear Edge Style Square Features Head Will Stay Square for Life of Product Finish Unfinished Graduation Color Black