It's a large cowbell. The metal is thin, and depending on where you strike it, it can produce low tones. Overall, it has a gentle sound. The maximum diameter of the opening is about 110mm (it's not perfectly circular), the maximum diameter of the body is about 160mm, and the height is about 175mm, not including the handle. It's too big for a door bell, but it can be used as a percussion instrument, and you can even play "Dan Mayo" with it.