0.01mm Precision Vernier Caliper Gauge with LCD Display

This is plastic material.Without battery.Battery type: LR44/SR44 1.5V button battery(not include). Description: Internal and external dimensions can be easily and accurately measured with the linear capacitive measuring system. You can adjust the zero setting in any position, with a small locking screw which locks the jaws in place. This LCD display vernier caliper is versatile, which can measure length, width, interior diameter, exterior diameter, and so on.