This 4-piece cutting mat set includes four distinct colors purpose marked (vegetables, fish, beef, and poultry) so you never forget what board to use for which purpose, helping avoid cross-contamination. The chopping mats feature a flexible design that allows easy transfer of chopped items quickly without spilling. Mats are non-absorbent and non-porous. They help protect countertops and keep knives from dulling. Mats are made of polyethylene plastic. Each mat measures approximately 11.75 x 9.75 inches. BPA Free and dishwasher safe.