This set of three chopping mats is a great alternative to heavy cutting boards. They will protect your counters, but won't dull your knives. Their added thickness (double the thickness of most chopping mats) minimizes warping, and they are color coded to prevent cross-contamination. The mats measure 11" by 15" and are double sided. These mats can help you easily transport food from your kitchen counter to a pan or bowl. Also provides great contrast for low vision users!