It is one of the creation and firing pots in Yongle Dynasty of Ming Dynasty. It is also called horizontal pot. Its shape imitates Western Asian metal utensils. It has a small straight mouth, a raised edge on the neck and a small series with a cover. The body of the pot is flat and round, the front is slightly drum, and there is a round convex navel in the center; The dorsal surface is flat with a corresponding round concave navel; The bottom is a curved surface, and the left and right shoulders each have a movable ring system. They are all blue and white, with star pattern on the convex navel on the front, tangled lotus pattern on the periphery, sea water pattern on the edge, and tangled lotus pattern on the side wall; No grain on the back.