Package included: 1pcsx Vernier Caliper measuring instruments The stainless steel electronic digital caliper shaft with ABS plastic case, strong and durable, depth measuring blade, jaws precision internal and external measuring gauges, precision ground finish digital calipers Inch/Metric/Fraction conversion for more needs. The resolution is 0.01mm. Metric thickness can measure up to 6 inch / 150mm, you can test inside diameter, outside diameter, depth, length, width by it. 3-button design makes it easy to use; one is on/off, the other mm/in/F, the last is reset. Featured by a large, high contrast, easy to read LCD display. An ideal tool for a wide range of industrial and automation applications. Features: Inch/Metric/Fractions conversion switch. Inch/Metric/Fraction conversion switch. 39;zero calibration. Auto on/off. Easy to read LCD display. Durable stainless steel construction. Specification: Range: 0.01mm to 150mm / 0.001in 6in Resolution: 0.01mm / 0.0004 Accuracy: 0.04mm / 0.0016 Battery: 1 x LR44 Button Battery (Included) Total Length: 234mm / 9.21 Material: Stainless SteelDisplay Digital Caliper 6 Inch Fraction / MM / Inch High Precision Stainless Steel