Ruler Graduation Marks 1/16 in 1/4 in Graduation Color White Finish Gloss System of Measurement Metric/SAE Features Know Which Side You are Using Due to the English Side Being Colorful and the Metric Side Being Black Non-Glare Surface Rule Type Rule Numeric Marks Inches Millimeters Numeric Format Decimal Length - SAE 12 3/16 in Length - Metric 309.5 mm Width - SAE 1 1/2 in Width - Metric 39.7 mm Graduation Units Inches Material Plastic