I use these levels for many years and am very satisfied. The reduction ratio is optimal, so that one has all the best overview of what is hinterbei and passing traffic moderately doing so. Estimating the right distance, it has been fast. The famous "too short" when mounting bolt does not exist. This is only too short, if you put together the mirror to be mounted wrong. The instruction could really be something understandable. Nevertheless, I give a full purchase recommendation!
