Material: Made of high quality ABS material, lightweight and break-resistant, easy to carry. Size: Length 64.8mm/2.55in, width 42mm/1.65in, accuracy 1mm. Scope of application: can measure tire tread from 0-20mm, tire repair tools This lightweight item provides an easy and effective method for checking tire tread depth. Cursor design: scaled font is clear, digital readout + scale reading, easy to measure tire depth, easy to operate, ergonomic design. Compact design: pocket size, convenient to store, provide you with a safe ride, you can carry it around any time when you need to measure the tread depth of your tire to see whether it needs to be replaced or not. Note: The data is manual measurement, please allow 1-61cm error, due to differences between light and screen, there will be a certain color difference, the specific received in kind prevail.