Prices are rising daily. This is a high-quality, domestically-made wooden shogi board. It's large and thick. Comes in vinyl packaging. They're not all the same; prices increase with the 5, 6, and 7 models. This is the top-of-the-line 7 model. The size and thickness differ from the 5 model. The 5 model feels cramped when you place the pieces. If you made one yourself, the materials alone would easily exceed 3,000 yen. Large hinges cost about 650 yen each. You need two, so that's 1,300 yen, and that's before tax! Screws are sold separately. The board material alone costs over 2,000 yen. To make it a two-fold board, you'd need to pay for cutting, and it probably wouldn't be done well, resulting in misaligned cut surfaces. Drawing the grid on the board with a marker wouldn't work well. Paint costs 1,800 yen, and you'd also need a brush. Therefore, making one yourself is impossible. Shipping costs would be considerable, and there's also a 280 yen fee for Mercari. *Since the cost of materials for domestic products is rising daily, it's likely production has already been discontinued due to a lack of profitability.