This item was stored in the storage room at my grandparents' house. It was used during the Showa era when the family gathered at my grandparents' house for New Year's and Obon. My grandmother used to serve her homemade rolled sushi on it, but it's also perfect for chirashi sushi and nigiri sushi. Since it was used, there are some fine scratches on the inside. Also, the seams of the lacquer on the sides are a bit noticeable, but there are no problems with its use. I believe the material is synthetic lacquerware. This is a set of 4, but as shown in image 10, there are a total of 7. I can accommodate the number you want. One is a different type, but it's the same size and has a similar feel. Diameter: Approximately 20 cm, Height: 4.5 cm