Every piece of our board is 100% made by hand with passion and patience. and every piece of wood has been carefully selected. Meterial: Auatralian Hardwood, Tasmania Black Wood Dimenssion: Size Medium: L360 x W250 x H25 mm Size Large: L400 x W300 x H25 mm Highly recommend Tasmania Black Wood which is one of the best Australian Hard wood, solid, durable, rich color, can be used for High-End funiture, flooring, picture framing cutting board, serve board etc. Food grade mineral oil and Australian bee wax conditioner applied, food safe and ready to use. Free delivery by Aus Post