Come and see our amazing products. This digital caliper is made of stainless steel, can be easyly converted between inch, fractions, millimeter just pressing one button. Accurate Measurement: Measurement Range: 0 - 6inch and 0 - 150mm; Resolution: 0.0005inch/ 1/128inch / 0.01mm; Accuracy: 0.001inch/ 0.02mm. You can measure exact external, internal and depth with two sets of jaws and the probe. Premium quality: Stainless Steel frame and knurled thumb roller and locking screw ensure smooth sliding and accurate positioning. It is stored in a palstic box. Pls confirm further with us if any query about packing info, inventory status and time schedule.