This polishing set is suited to remove scratches and dull spots from clear plastic sheets. The scratches will vanish easily with Zvizzer Heavy Cut polish. The polishing disc automatically centres itself, reducing excessive vibrations. Because Zvizzer is a water-based polish, is will be easy to judge the polishing progress. Unlike oil-based polishes, a water-based polish does not fill up scratches, making them easy to see while doing the job.