Functions: Multiple Measurements: Can measure diameter, inner diameter, step difference and depth, much more practical. Ergonomic design: comfortable grip, labor saving and stable performance. High Quality Material: Made of premium ABS and stainless steel materials, lightweight and durable. Fine workmanship: ensures high hardness, wear resistance and high accuracy during use. Large LCD Display: Instant results can be read in digital numbers, much more convenient. Clear scale: With switchable units (mm/inch) for easy reading. Accurate Measurement: Rigorously test to ensure accurate results with an accuracy of ±0.04mm. One-click clear: press to zero, then continue measuring, improving work efficiency. LR44 button battery: easy to replace, low power consumption and long life. Technical data: Material: Stainless steel Power supply: 1 * LR44 1.5V 160mAh button battery (included) Measuring range: 0-150mm Resolution: 0.01mm Accuracy: ±0.04mm Product Size: Approx. 237 * 77mm / 9.33 * 3.03in 24 * 8 * 3cm / 9.45 * 3.15 * 1.18in Package Weight: Approx. 280g/10.19oz Packing list: 1 * digital caliper 1 * storage case