[Accurate measurement results]tire depth gauge is precise in measuring. It could examine a range of 0-25.4mm depth with 0.01mm accuracy. Always offer accurate data of your condition of tire depth.[Easy to Read] Digital LCD screen display makes it easier and more clearly to read. Zero setting at any position. The tyre tread depth gauge is suitable for inch and mm,you could change the system with one-touch of the model adjust button.[Resistant & Durable] tread depth checker is designed with ABS plastic body and electroplated iron probe,corrosion and wear resistant. A built-in battery and an external battery ensure long-term use.[Protable and Lightwight] digital tyre gauge is small and exquisite. Only 50g ABS plastic body with stainless steel needle is easy to carry and use. Three colors(Black/Silver/Blue) for choose.