This is something I bought when I went to Kagawa. Komadori, one of the representative techniques of Kagawa lacquerware, features a design inspired by spinning tops (koma). It's a decorative method where colored lacquer is applied in concentric circles along the grooves created by a potter's wheel (rokuro). Because spinning tops "spin well," they are considered lucky charms, with wishes for things to go smoothly and without problems, such as prosperity in business and safety for the family. I kept it displayed in my china cabinet at home, so it's unused. The inside is black. There's some reflection, but it's in beautiful condition with no scratches. The purchase price was 12,000 yen.