Imported from Japan and the Tokyo Ryogoku Kokugikan (Tokyo Sumo Arena).
These keychains have a caricature figure of your favorite wrestler. The mawashi is imprinted with the wrestler's name along with what appears to be a random mawashi color. Mawashi color may be Blue, Green, Red, Yellow, Purple, or any other color the Kokugikan decides to use but the wrestler's name will be correct.
The figure stands about 2" tall with a head that swivels and a small bell on keychain giving a light ring when moved.