Product Material: Stainless Steel Product Specification: 235*78mm Applicable battery: 1.5V button battery Measurement accuracy 0.01mmDigital caliper 150mm can be measured up to 6inch\/150mm, with an accuracy of 0.01 mm Conversion between inch \/ millimeter with a push of a button. (Electronic products may have an error of 0.02mm, if you mind, DO NOT BUY.) High Quality Stainless Steel MaterialMade of stainless steel, very sturdy and durable, ensure long life ; Two units mm and inch, suitable for different user habits; Auto shut off in 5 minutes, help you save battery power. Large Readable LCD DisplayThe electronic calipers are equipped with a readable and high resolution (0.01mm\/0.0005 inch) LCD display. ) which displPXCL the exact data by pressing the pulley to read the data timely, which allows you to read and record quickly (measurement speed: 1.5m\/s). Multi-FunctionWide ApplicationsThis caliper is ideal for precise measurements of internal, external dimensions and even depth. Readings can be displayed in inches or millimeters. Zero function can be used at any time to allow differences between measurements to be measured. Widely used in industry and automotive, professional personnel, household measurement and office work. Is the best choice for men's gift, Christmas gift, gift. Any questions, please feel free to email us. Package Contents1digital caliper, 1plastic box, 1battery , 1user manual, 1*small key.