With these Epicurean standard commercial cutting boards, you get the best of both wood and poly in one functional surface. These NSF approved food preparation surfaces will not dull knives, harbor bacteria or stain. They are heat resistant up to 350˚, dishwasher safe, and completely maintenance free. Each two-sided surface is fashioned with a hole for convenient hanging storage. Upgrade your kitchen with these food preparation surfaces.  The 3/8" thickness gives these cutting boards a solid and substantial feel, while maintaining easy storage and handleability.