This is **Umoregi Zaiku (buried wood craft)**, a traditional craft of Sendai. Umoregi Zaiku is made from wood (umoregi) buried by the flooding of the Hirose River about a million years ago. The buried wood has hardened and turned black over a long period of time, and the wood grain also beautifully emerges. It is difficult to determine the type of tree used for the buried wood, but it is often estimated to be Zelkova, pine, cedar, or Katsura. Because the buried wood has carbonized over a long period of time, it is characterized by its beautiful wood grain and durability. Bottom Plate Width: 15.5 cm Length: 13 cm Case Width: 11 cm Length: 9 cm Height: 4 cm *Due to the natural wood, the size may vary depending on the location. Please understand that these are amateur measurements. The condition of use is not apparent from the appearance. As this is an antique item, there may be fine scratches and stains. *Please purchase with the understanding that this is an antique item! The box has deteriorated over time. We have taken detailed photos, so please check them and purchase if you understand! We will pack it as compactly as possible for shipping. When using cardboard boxes, we may reuse boxes! Thank you for your understanding.