ITEM NAME:3x Professional Tire Tread Depth Gauge 25 mm Standard Metric Gage Hot Descriptio n Description: Features: Professional tire tread depth gauge. Practical and simple to use. Mini size, light weight, easy to carry. Accurate test, clear readings, take care of your safety. Cylindrical measuring bar ensures precise measurement. Usage: 1. Push the probe up to the bottom 2. Place the size black flat seat on the tread 3, then push the size down to the bottom, read the value is normal. Specifications: Material: Stainless Steel, ABS Color: Picture Color Size: About 9x2.5cm Suitable Model: General Type Red Zone Representative: To Change The Tire; Yellow Zone Representative: Warning To Be Replaced; Green Zone: Normal Use Depth Range: 1-25mm Red Area: 0-3mm & 0-3/32 Yellow Area: 3-5mm & 4-32"-5/32" Green Area: 5-25mm & 6/32"-1" Package Included: 3 *Â Tire Tread Depth Gauges (2 * Double Colors, 1 * Single Color) Note: 1.Due to the manual measurement and different measurement methods, the actual size could be slightly different. 2.Please be reminded that due to lighting effects and monitor's brightness/contrast settings etc, the color tone of the website's photo and the actual item could be slightly different. High quality buy, happy buyï ¼ 3x Professional Tire Tread Depth Gauge 25 mm Standard Metric Gage Hot.Professional tire tread depth gauge. Place the size black flat seat on the tread. Red Zone Representative: To Change The Tire; Yellow Zone Representative: Warning To Be Replaced; Green Zone: Normal Use.