This is a wall-mounted decorative plate. Diameter: 20cm It was displayed at my parents' house for a long time. I believe it's probably made of copper. There are traces of double-sided tape on the back. Please refrain from purchasing if you are at all concerned. Please note that recycled materials may be used for packaging. Also, the shipping method may be changed from "Yu-Yu Mercari Delivery" to "Raku-Raku Mercari Delivery." Please understand. Please consider purchasing after understanding that this is a used item stored at home.