The mug is made from a slab of porcelain which has been laminated with a slice of a colored pattern of clay made by a mokume gane process of texturing then flattening a layered piece of clay, then slicing. All of the color is in the glaze, with a clear glaze. Dishwasher and microwave safe.
Mug measures 4 1/2 tall by 3 1/4 inches in diameter, and holds a generous 15 ounces.