Size 42.5 x 42.5 This is a ro-buchi (furnace frame) I received while helping to clean up a relative's house. I am not familiar with the tea ceremony, so I do not know the details. Please judge the product based on the photos and purchase it only if you are satisfied. The yellow cloth wrapping the ro-buchi has stains. The wooden box has a line in the center. Please feel free to request additional photos. When negotiating the price, please provide your desired price. Instant purchase is OK.