The Faithfull easy to use gauge enables you to quickly check your tyres are legal and roadworthy, and help you spot uneven thread wear, and tracking errors. It gives a fast and easy-to-read measurement of tyre tread depth from 1 to 24mm in one-millimetre graduations on a sliding barrel, steel body with an easy read sliding plastic centre column. This gauge can be used in conjunction with the FAIAUPGUAGE manual pressure gauge to help ensure tyres are in top condition, and includes a 1.6mm graduation marking to comply with MOT minimum tyre tread depth requirements. Measures Tyre tread depth from 1 - 24mm.