Steel Rule, Thickness 0.22 in, Coating Not Applicable, Graduation Color Black, Flexibility Rigid, Graduation Mark Style Etched, Edge Style Beveled, Folding Rule Type Not Applicable, Backing Material Not Applicable, System of Measurement Metric/SAE, Features Marked with Arrows at Two Suspension Points, Quick Reading, Accuracy +/- 0.0002 in, Rule Type Rule, Numeric Marks Inches, Millimeters, Numeric Format Decimal, Length - SAE 3 ft, Length - Metric 900 mm, Width - SAE 2 7/16 in