Four food-specific, non-slip cutting boards plus four knives, stylish storage bag for easy access and neat storage. High-quality knives with blades made of Japanese stainless steel and integrated tool trays for more hygiene and less mess. Hand washing is recommended for knives and boards (not dishwasher safe), wipe the bag with a damp cloth. As with all plastic cutting boards, the knife-friendly cutting surfaces will show signs of use.