New Precision Tool 0.01mm Accuracy Measurement Instrument Round Dial Indicator Gauge Vertical Hard chrome-plated stem, precision ground and lapped. Simple structure, convenient to use and maintenance. Easy-to-read crisp graduations,with good wear resistance and anti rust properties. Material: Metal; Reading: 0-90-0 Size: Approx. 4.17*2.13*0.87inch/10.6*5.4*2.2cm(Length*Width*Height)