This is long-burning oak charcoal. Approximately 3kg, for 5 uses. 5 pieces of "dozumi" charcoal, 1 ring-shaped "wadouzumi" charcoal. 10 pieces each of round "mankan" and split "kankan" charcoal, and "tentan" charcoal. 30 pieces of round "gitchiyo" and 20 pieces of split "gitchiyo". The entire process, from charcoal making to cutting, is carefully done by an individual. After cutting, fine powder is removed with a blower. If you wish to purchase 2 boxes or change the number of pieces, please comment before making payment.