Thank you for viewing. I listed it as a flat, round plate-shaped brush washer for search purposes, but I don't know the exact name or use. Size: Height: 4.0 cm, Width: 18.3-18.4 cm Please allow for some margin of error. No box. Overall, there is dirt, stains, discoloration, scratches, and minor damage; the condition is poor. There are kiln marks or areas where the glaze hasn't applied well on the back. There are bubble-like marks and holes. There are also dirt, discoloration, stains, scratches, and minor damage other than what is shown in the photos. I do not know the exact production period or location. Please consider it as a contemporary craft item. I have not checked for water leakage. Please consider it for display purposes when purchasing. It cannot be used as tableware. No box. I try my best to specify any damage or dirt, but there may be areas that are not mentioned. Please understand this before purchasing. Shipping may be delayed on weekends and holidays. The shipping method may be changed from Yu-Yu Mercari Bin to Raku-Raku Mercari Bin.