MISUZU Ishiyaki Tsubo Banko-yaki Roasted Sweet Potato with Small Stones I'm selling this because I've only used it once or twice and haven't used it since. I'll include the stones, but please let me know if you don't need them. Heat it on a gas stove or stove top, put sweet potatoes inside, and you can enjoy delicious roasted sweet potatoes at home. There are some burn marks, but there are no cracks or chips in the main body, and it can still be used.