Souvenir Exclusive to Masu-seki Seats at the 2025 May Grand Sumo Tournament A black and red bowl with the names of wrestlers up to the 74th Yokozuna, Hoshoryu, written in gold. It's a large, round bowl. Diameter: 15cm. It seems versatile and can be used for donburi, sweets, and more. How about it, sumo fans?