Save clean-up time and money on every auto body repair project with the Eastwood Tear-Off Filler Mixing Board. Using a bondo mixing board gives you a dedicated surface from which to mix and apply polyester or epoxy body filler. A thick stack of 100 tear-off 8.5-inch by 11.5-inch mixing sheets are mounted to a rigid piece of 1/8-inch tempered Masonite wood. The sheets are gum-banded on three sides to prevent tearing while mixing and applying fillers. When you're done smoothing over dents and cracks, cleaning your body filler mixing board takes a few seconds. Simply tear off the top sheet and throw in the trash — just like that, you're ready for the next project with no dried residue.