This is a lovely Black Walnut tray. The wood is from a tree that was felled in 2004 from a tree in Lafayette, California. The tray can be used for cutting and serving meat and cheese. Walnut oil finish was used to help protect the wood's character and also enhances the color of the wood. Clean with warm water, mild detergent, and dry it immediately. It can be re-oiled with walnut oil (found in grocery stores) or mineral oil. Do not use vegetable oils as they turn rancid in time.