This is a cushion for children. Size: Approximately 30cm (length) x 32cm (width), about 5cm thick. It has flat elastic straps to attach to a chair. The star pattern makes it suitable for both boys and girls. I bought it but never used it, and it has been stored. The packaging bag is a little dirty, but the contents are new. *I apologize, but the shipping cost for this item is 870 yen, so I have set the price as low as possible and cannot offer a discount. Thank you for your understanding.*