Joseph Joseph Index Advance Chopping Board Set, Dark Grey, Small Chopping board categorization system with four colored boards Color coding system: red for raw meat, blue for seafood, green for veggies and white for cooked foods Illustrated tabs provide at-a-glance reminder; contemporary ABS storage case with a non-slip base Boards are made from polypropylene; convenient, non-slip feet on both sides of each board Dishwasher safe