Minimize cross-contamination with Color Coding cutting boards. They have a patented Food Safety Hook designed to prevent cross-contamination from hands and clothing while carrying, and provide a safe and sanitary method for drying and storage. The boards are made from a premium co-polymer material that is extremely durable yet gentle on knives. NSF Certified boards and are designed to stand up to continual commercial dishwashing and will not warp. Boards are 1/2" [13mm] thick