Approximately 19.5cm in diameter. This lidded vessel with ash glaze is of unknown origin and maker. As you can see, it has a rough, earthy texture, giving it a sense of power and simplicity. I used bamboo leaves as props for the photo. It would be nice to arrange food on it with some greens. There are no cracks, chips, or fissures, but there are some rough spots. Please check the photos. This is a used item. (Inspection by an amateur.)