These Chop-Chop flexible cutting mats feature a waffle backing, allowing for non-slip usage while cutting or chopping. Made of FDA approved materials, these mats are flexible so you can roll up to create a funnel-like exit for the transfer of foods to the pan without spilling. This set of flex cutting mats comes in assorted colors, making it simple to use different mats for raw meats and vegetables, avoiding cross-contamination. These mats measure 11 by 15 inches. Hand wash. Great for chopping, slicing, carving, or cooling, these amazing kitchen mats won't dull your knives, are food-safe, BPA-free and top shelf dishwasher-safe. Colors/finish: Multi Materials: Plastic Quantity: Four (4) cutting mats Setting: Indoor Dimensions: 11 inches wide x 15 inches long Plastic flexible chopping mats designed with a specialized material that will bend to accommodate usage, but will not let a knife pierce through Prevent cross contamination with microban anti-microbial cutting boards with product protection that inhibits the growth of stain and odor causing bacteria These Flexible Cutting Boards are top shelf dishwasher safe and will not dull your knives