This official kiln Cong-style bottle has a round mouth, folded shoulders, a cuboid abdomen, and a ringed foot. The shape is dignified and solid. The carcass is thick and the abdomen protrudes into groups of string patterns on all sides. The whole body is covered with green glaze, and the glaze is covered with large and small pieces. The body of the bottle glowed with butter-like luster, and the glaze was thick. The shape of this device is quaint, the workmanship is exquisite, the glazed surface is moist and delicate, the slice is natural, and the appearance is complete.