Complex sentence: Non-permanent marker is often used for making markings where permanence is not required or would be a drawback, as for example marking overhead transparencies and can be erased with a wet cloth or paper towel.
Split into simpler sentences: Non-permanent marker is often used for making markings where permanence is not required or would be a drawback, as for example marking overhead transparencies. It can be erased with a wet cloth or paper towel.