1. Hardened stainless steel construction with 4 way measurement: outer diameter, inner diameter, depth, and step. 2. Readout switches between inches and metric measurements with a push of the Inch/Metric button. 3. The Zero/ABS button allows for the display of the absolute coordinate or true position from the point. 4. Supplied in fitted plastic case. 5. Large and Clear LCD readout. Measuring speed: unlimited Accuracy: +/-0.001inch Measurement Range: 0-150mm Type: Absolute Output: NO Measuring speed: unlimited Colour:As Shown Material:Plastic+Metal Package Contents: 1 x Digital Caliper 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.