Easy to read: Colored scale bar with 6 sides and 1 unit printing for easy reading. The color-coded tread depth gauge clearly indicates the different phases of the tire tread by different colors. Depth range: the tread depth gauge in the red range of this tread depth gauge: 0-3k, yellow range: 3-6 knots and green beach: 6-32nds, please pay attention to the above, the target is Xnds, if the measurement side points to 12, it is 12/32 inch or 12th, and the total measurement scale below is 25mm . Color representation: If the red area means you want to replace your tires, the yellow area means it alerts you that you are about to replace your tires, and the green area means normal. Easy to carry: the tread depth gauge comes with a pocket clip, easy to carry tread depth gauge. Versatility: monitor regularly car tire tread height to ensure your driving safety. The tread depth gauge reads 0/32-