Alvin Roll Holder For Trim100 has a self sharpening steel wheel that makes it easy to cut in both directions. It is easy to operate using the top mounted handle that swivels. It cuts paper longer than the trimmer. The Alvin Roll Holder has a metal ruler on the baseboard for accurate measurement of paper in inches and metrics. The unit comes with a handy stand and tray to catch waste. A handy tool for the professional or amateur artist.