Compact and portable, maximizing space efficiency. Quickly and effortlessly check tire tread depth. Straightforward design. Measurement tool for 0-20mm, suitable for automotive and motorcycle tire tread depth assessment. Specifications include recommended limits: 3mm for summer tires and 4mm for winter tires. Product name: Plastic Tire Tread Depth Gauge. Made of plastic, with a measurement range of 0-20mm and a weight of 14g. Accuracy tolerance is ±0.1mm.