Science Purchase Steel 6-Inch Digital Caliper with Extra-Large LCD Screen with Battery and Case! Features with a large LCD display, easy to take readings. Come with Case and Battery Measures from .001" to 6" or .01mm to 150mm Hardened stainless steel shaft with depth-measurement probe, precision ground jaws Used for industrial work, hobby work, jewelry, gunsmithing, etc. Includes battery, zero reset and thumbwheel for precision adjustments and case; lifetime warranty