Feature: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 GaugeMaterial:AlloyColor:White/Blue/Black(Optional)Condition:100% Brand NewInstructions:NO.1-Check the switch key to check if the display is normalNO.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.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..Package List:1 x Tyre Depth GaugeNote:Tire maintenance replacement requirements:The tire wear limit value 1.6mm, it is recommended to replaceFrequent high-speed driving wear 3mm, it is recommended to replaceFrequent rain and snow weather driving wear 4mm, it is recommended to replaceIt is recommended to take the average several times.