The Warther Cutlery Exotic Woods Cutting Board. These boards are made with a combination of US Hardwoods and Exotic Woods. We still consider wood to be the best cutting board material. It will not dull your knives, is easy to clean, and reduces bacteria growth. Our 12" x 18" cutting boards are finished with a Mineral oil. One side is grooved to catch meat or vegetable juices while the other side is flat for use as a decorative serving tray. Each Exotic Wood Cutting Board is comes with a different combination of the following US Hardwoods and Exotic Woods.