Yellow Plastic Tire Ruler Vernier Depth Gauge Tire Wheel Measuring Tool 0-20mmOOTDTYWechs: Using Standard Minimum Introduction. Adopt super polymer ABS materials, non-toxic to the environment, durable and safe. Mini bodies. The small body provides convenient carrying and storage. There is a needle inside, you just need to push it, then quickly and easily measure the depth of the tire. Measuring range to 0-20mm, make sure fit for motorcycle trailers, etc. Specification: Material: PlasticSize: About 65x4 2mm/2.6x1.6in Range: 0-20mm Error: ± 0.1mmPackage Included: 1X Checker Tire TreadNote: Please allow 1-3cm error due to manual measurement. Pls make sure you don't mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item.