The kilns in Qingbai produced thin-walled porcelain with a clear, blue-white glaze. Bowls and plates were decorated with incised motifs from nature, whose execution was sometimes exceptionally fine. The blue-white glaze accumulated in the incisions, subtly emphasizing the lines of decoration. The container in the form of a bird was probably intended for cosmetic products, but may also have been used for spices or perfume.