This is a round ceramic tray/plate from Okabe Enterprises International, commemorating the year 2000 millennium. It has some depth, making it convenient for holding small items on a table. Size: Diameter: Approximately 11cm x Height: 3cm Measurements are taken at home, so please allow for some error. Due to the lighting, the blue appears strong in the photos, but the actual color is emerald green. The third photo is the closest to the actual color. The vibrant color, which doesn't stand out too much, is a rare and exquisite shade. This is a used item. Please consider purchasing if you understand this.