3kg x 2 boxes of domestic Japanese oak Please try genuine domestic charcoal for your irori (sunken hearth), hibachi (brazier), and as supplementary charcoal for the tea ceremony. The pieces are large, and may include peeled bark and cracks. They hold heat well. Please understand that sales are final (no returns, refunds, or exchanges). Due to the charcoal shortage and unstable supply, this is a very good price. For Okinawa Prefecture, shipping will be an additional ¥3000, so please inquire before purchasing!