This is a "Kaku Hamaita" (square clam board) used in the tea ceremony and for setting up Kaiseki cuisine utensils. Made from high-quality cedar wood, it is finished to bring out the beauty of the wood grain, enhancing the dignity of the space. The corners are rounded, giving it a soft yet refined appearance. It is perfect as a mat for tea ceremonies or for food presentation. It shows various expressions depending on the lighting. Size: Approximately 410 x 290mm Thickness: Approximately 7-10mm The box has some warping and damage. Please check the photos. Although unused, it has been stored at home. Please understand this before purchasing. *Please ask any questions or make requests in the comments. Thank you for reading to the end.