This Faithfull easy-to-use Tread Depth Gauge quickly checks whether tyres are legal and roadworthy and helps to spot uneven thread wear and tracking errors. It gives fast and easy to read measurement of tyre tread depth from 1 to 24mm in one millimetre graduations on sliding barrel. It has a steel body with easy read sliding plastic centre column. Includes a 1.6mm graduation marking to comply with MOT minimum tyre tread depth requirement. Use in conjunction with the FAIAUTPGUAGE manual pressure gauge, to help ensure tyres are in top condition. Supplied with full instructions.