Thank you for viewing. It is 42.3 centimeters square and up to 6.8 centimeters high. This is a ro-buchi (furnace frame) that I used in the tea room at my home before the war. I stopped using it when the tea room was demolished during renovations. It is a wabi-sabi item that has been in my family for over a hundred years, purchased by my great-grandfather from the Taisho era to the early Showa era. I believe it was already an antique back then. Thank you.