The fourth photo was borrowed from the official Amazon page. Purchased from Amazon around October of last year. I used it for about a month after giving birth. It's made of a material that doesn't easily lose its shape, and it was very easy to use. There is some wear and tear, but no noticeable scratches or stains. This soft brown-beige round cushion provides a comfortable sitting experience. ✅【Product Specifications】(approx.): Length: 37cm Width: 32cm Height: 6.5cm Weight (approx.): 400g Thank you for looking.