Natural wood fiber based cutting surface trees are harvested from managed forests. Made in the USA;Surfaces are dishwasher safe or are easily cleaned with soap and water. National Safety Foundation (NSF) approved. Knife Friendly. Maintenance free, no need to oil or bleach. Material developes a richer color over time.;Preferred material for food preparation by chefs and commercial kitchens for over 40 years. Temperature resisitant to up to 350 degrees. Use as a trivet without leaving browned rings from pots and pans.;Enginered space for handling and hanging.