Serving Tray is made of marble in brown nunances. The beauty of a natural stone is that no two pieces are exactly alike. Each is a unique piece of art forged by mother nature over millennia using heat, pressure, and lots of different minerals and organic materials. The way these minerals settle into the stone is what causes the huge array of colors, patterns, texture, and veining in each slab. Do not use in the oven, microwave or dishwasher.