Thank you for viewing! ♡ Diameter: Approximately 40cm Height: Approximately 3cm This is an older item, purchased at a department store. The cover was replaced once, and is now a Nordic pattern and dark brown. I didn't sit on it constantly, so it's in relatively good condition as I used it occasionally. The condition of the item reflects its use. I saw that a single one is currently listed at 11,000 yen on the official Tempur website. Please note that returns and exchanges are not accepted.