Families with siblings will find this board convenient when going out together. ★ 3-wheel board (without joint) I bought this about [price] years ago for my children, for around 8000 yen. I seem to remember using it once or twice after assembling it. I got rid of the stroller last year. I forgot to get rid of this board at the same time. I checked the parts, and it seems I threw away the board joint while it was still attached to the stroller, so I don't have it. However, you can buy the parts on the official website of Nihon Ikuji Co., Ltd. I hope families with siblings will consider this.