The Tianmu Cup is covered with thick gold nanmu glaze. When it is burnt to high temperature, the glaze flows. It accumulates in the cup. It is like a small piece of green jade. It adds a gold cup texture. This glaze is as thin as gold. It is like jade when it is thick. Large. Diameter 8.1cm. Height 4.5cm. Capacity 60cc. Cleaning and maintenance with general ceramic products.