This is a sencha tray (kyusu tray) that I like. It's old, so it has scratches and stains commensurate with its age, but I think that adds to its character. The material is unknown, but it seems hard and durable. Diameter: Approximately 18.3cm Height: Approximately 1.4cm The size is approximate. The actual item may differ slightly in color from the images. It is old, so there are scratches and stains commensurate with its age.