Every automobile owner should check their tyre tread every once in a while. This device, designed especially for truck drivers, makes it easier. Simply stick it into your tread as far as possible and it will indicate whether the minimum is reached or not. It comes with two fast and easy to read scales, one in millimetres (0 - 3,5 mm) and one in inches (0 1,5 in) so that international truck drivers can also read it. This tiny device will easily fit anywhere in a truck, yet boasts enough room for your company's logo.