This is a pillow to prevent flat head in babies. I purchased it two years ago, but I'm selling it now because I bought a larger pillow. It was used for about six months. It's still in good condition, so I hope someone can use it♡ This pillow is especially breathable in the summer. I'm selling the pillow itself and two covers as a set(^^) Both the pillow and covers have been home-cleaned. The pillow itself is made of mesh material, and the covers are made of gauze material. Both the pillow and covers are machine washable. Size: 45cm x 24cm x height 4cm Material: Surface: 50% cotton, 50% lyocell fiber Lining: 100% polyester Filling: 100% polyester Cover: 100% cotton I will fold it up small for shipping. Thank you for looking.