Features: Durable MaterialThe tire tread depth gauge is made of durable plastic and stainless steel which is to avoid rust causing the probe to retract. Safe DrivingTread depth gauge suitable for measuring the degree of wear of tire surfaces, it can let you regularly monitor tire tread levels of your car, make driving safer. Color CodingDifferent color coding clearly indicates the color of the tire at different stages, with red areas indicating need for replacement, yellow areas warning of imminent replacement, and green areas in normal use. Easy to UseWith simple use, push the probe straight up to the end, and then you can measure the black flat surface on the tire pattern. Universal TypeTire depth gauge suitable for trucks, motorcycles, automobiles and passenger vehicles. And it has a pocket clip, easy to carry. Specifications: Material: Stainless steel, plastic Color: Multi Size: (Approx)(LxW) 8.7x2.6cm/3.43x1.02inch (length without probe) Depth range: 1-25mm/0.04-1inch Red area: 0-3mm/0-3/32inch (Need to be replaced) Yellow area: 3-5mm/4-32-5/32inch (Warning about to be replaced) Green area: 5-25mm/6/32-1inch (Normal use) Package Included: 1 x Tire Tread Depth Gauge Note: 1. Due to the light and screen difference, the items color may be slightly different from the pictures. 2. Please allow 0.5-2 cm differences due to manual measurement.