[IP54 Waterproof/Dustproof Function]:Digital Caliper is constructed of high grade Stainless Steel material,which has a strong frame with silver paint on the . By IP54 design offer Waterproof, Dustproof, Anti-Rost and Splashproof function. Also we offer a hard case for storage. A good helper for DIY,Household woodworkers,machinists [Accurate Measuring LCD Screen Show] digital caliper ensures precise measurements with a measurement range of 0 -6inch / 0-150mm; Accuracy: 0.001inch/ 0.02mm; Resolution: 0. 0005inch/0 01mm.Perfect and accurate caliper measuring tool.Equipped with large LCD screen can help you easy-to-read.It also has an auto-off function to save battery power after 5 minutes of inactivity. [4 Measuring Ways and 3 Units Conversion]Measuring caliper comes with two sets of jaws and a probe, enabling you to measure inside and outside diameter, depth, and step. And only push of a button,you can switch 3 units: inch, mm and fraction based on your habits. [VERSATILITY]1.Auto-off function: save battery power after 5 minutes of inactivity . 2. Zero button: Repeat multiple measurements by simply pressing the zero button. 3. Glides smoothly: Digital micrometer with knurled thumb roller and locking screw smooth sliding and accurate positioning in use Product Range: 300mm/12Inch. Product Accuracy: 0.02mm/0.0005inch 3V lithium battery CR1632 ( not include battery) Color: As Shown Material: Stainless Steel Package Contents: 1 x Vernier Calipers 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.