1. Carbide anvil, 2. Large LCD display,clear display screen 3. Mechanical laser scale, can be used even without power 4. 3V large capacity battery, long-lasting battery 5. Two Kinds of Measurement Units Optional: Metric or Inch, More Convenient for Daily Use It can easily cope with harsh environments, thanks to its powerful IP65 protection level, waterproof, oil , and dustproof Battery:3V Storage temperature:-20-60 Operation temperature:0-40 Service humidity:less than equal 80% Measuring range & Accuracy:50mm-75mm:0.003 mm Colour:As Shown Material:alloy steel Package Contents: 1 x Micrometer Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.