Walnut (also called Black Walnut) is a beautiful dark-brown North American tree that is widely used for its beautiful grain and decent hardness. This rolling pin is approximately an inch thick in diameter and ten inches long. Handwash only! This rolling pin is sized for small baking projects such as dumplings or pastries. It's perfect if you don't have much kitchen space too! Like all of my other products, this Walnut rolling pin is handmade in the United States.The wood is sourced from the United States as well.