Features: With solar powered-, no for extra battery required, which saves a lot of cost. Quickly convert two measuring unit (INCH/MM). Measuring Range:0 - 150 mm (6") / Resolution: 0.01 mm (0.0005"). Internal, external, height, and depth dimensions- can be easily and accurately measured. Suitable for home, woodworking, jewelry, DIY, automotive mechanical measurements and more. The digital caliper measuring tool is easy to use, portable, and durable. Specifications: Material: plastomer Whole length: approx 23.8cm/9-inch Range: 0-150mm Error: 0.04mm Resolution: 0.01mm Note: Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Digital Caliper