Metal (possibly copper, as it doesn't stick to a magnet) plate, dish, or small container. Shows signs of use. Approximately 16.7cm x 14.8cm (length x width) Height: Approximately 2.7cm "通" (Tsu) is written on the back. This is a used item that has been stored for a long time. There are scratches and stains, so please check the images and understand before purchasing.