The cutting board is foldable, magnetically detachable and doubles as the enclosure for your Prepdeck unit. It’s made of Tritan and will score when using a sharp knife. The magnetic enclosure makes it easy to detach and clean or swap out if, for example, you are worried about contamination when switching between cutting meat and veggies. We recommend washing the cutting board by hand. Our Prepdeck+ comes with 2 cutting boards.