English Plumb Bob Body Shape Round Material Brass Finish Unfinished Overall Height 6 in Graduation Marks mm Included Components Clip Weight 20 oz Reading Direction Bottom to Top System of Measurement Metric/SAE Gauging Method Innage Tip Material Brass Includes Not Applicable Features Cylindrical Body Accuracy +/- 0.0005 in +/- 2.3 mm Overall Diameter 3 in Overall Width 3 in Measuring Range - Maximum 100 ft