I'm currently cleaning up my parents' house. This was stored in the china cabinet. Diameter: Approximately 30.2cm Height: Approximately 2.8cm Please allow for some error as this is amateur measurement. I don't know the type of wood. In the first photo, it looks like a decorative tray with beautiful wood grain, but since it was a used tray, you can clearly see the scratches from use when placed on a flat surface. The tatami tray and plate stand in the photos are not included in the sale. Please understand the item based on the description and photos, and only purchase if you agree.