This set of Kussi Flex & Grip Cutting Boards includes four brightly coloured cutting mats allow you to choose which types of food to cut on which mat to prevent cross-contamination. The BPA free, antibacterial, and food-safe poly material will not dull knives. The Xmm thick mat is sturdy and durable yet has enough flex to allow easy funneling of chopped food into a bowl or pot.  The non-slip grid backing grip s surfaces and holds the mats in place during use. Odour resistant and dishwasher safe. Always wash cutting mats with hot soapy water.  Rinse and dry between food preparations.