This is a cushion for chairs and backs. Please check it out if you are concerned about lower back pain or back pain. ◆Important Notes◆ This is a used item stored at home, so there may be small stains not visible in the images, as well as deterioration due to storage and aging. We are waiting for your purchase after you have carefully reviewed the photos and description and understood the condition. Please note that the color may vary depending on the monitor of your device. To prevent any problems, please refrain from purchasing if you do not understand used items, if you are nervous, or if you are not responsible for your purchase.