If you are a serious cook, you'll appreciate this giant cutting board. If you are a serious cook, you'll appreciate this 24 x 17-inch cutting board. It's made of heavy, 1/2-inch thick high density polyethylene. It won't warp, crack, or chip. This is a professional cutting board. It is NSF approved for comercial and industrial use. * NSF approved * Dishwasher safe * Protects your countertops * Won't dull your knives * High density * Non-toxic