Features: 1.Excellent material selection, fine workmanship,good working performance. 2.Lightweight and compact, long service life and durable. 3.Removable battery, easy to disassemble low-power battery. 4.Metal probe, fine workmanship, sturdy and durable, clear scale, intuitive data display, easier to distinguish. 5.Pushing outward, the probe is extended, pushed in, the probe shrinks. Specification: Item Type:Tyre Thread Depth Gauge_x000D_ Material:Alloy_x000D_ Color:White/Blue/Black(Optional)_x000D_ Condition:100% Brand New_x000D_ Instructions:_x000D_ NO.1-Check the switch key to check if the display is normal_x000D_ NO.2-Return to zero, press the measuring surface close to the flat plane and push the measuring rod to the end. Press ZREO to clear the key to display 0.00._x000D_ NO.3-Adjust the measuring surface vertically to the tire tread of the car, and insert the measuring rod into the bottom of the groove to display the measured value. Tips: It is recommended to take an average of several measurements. PackageList: 1 x Tyre Depth Gauge1 x Battery Note: Tire maintenance replacement requirements:_x000D_ The tire wear limit value 1.6mm, it is recommended to replace_x000D_ Frequent high-speed driving wear 3mm, it is recommended to replace_x000D_ Frequent rain and snow weather driving wear 4mm, it is recommended to replace_x000D_ _x000D_ _x000D_ It is recommended to take the average several times.