Package included: 1pcsx Vernier Caliper Measuring Instruments Stainless steel electronic digital caliper shaft with ABS plastic housing, strong and durable, depth measuring blade, measuring jaws precision internal and external measurements, digital precision calipers with lapping finish Conversion to inches / metric / fractions for more needs. The resolution is 0.01 mm. The metric thickness can measure up to 6 inches/150 mm, you can test the inner diameter, outer diameter, depth, length, width by it.< /p> 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 screen. An ideal tool for a wide range of industrial and automated applications. Features: Inch/metric/fraction conversion switch. Zero calibration switch. Automatic on/off. Easy-to-read LCD display. Durable stainless steel construction. Specification: Range: 0.01 mm to 150 mm / 0.001 inch 6 inch 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