CLEAN SHEETS DISPOSABLE MIXING BOARD - A non-absorbing mixing pallet with 100 sheets of mixing surface. It's great for mixing filler, fiberglass, plastics, gel, putty, and even touch up paint. Keeps contaminants out of your body filler & plastics. Just mix & use then peel off top sheet and your ready to go again. 100 sheets per board. Two board sizes available: 12" x 12" or 12" x 17".