Thank you for viewing! A breathable donut-shaped baby pillow that supports comfortable sleep for babies. - Brand: Alnmuse - Size: Approximately 38 x 27 x 6.5cm - Material: Outer fabric: 100% polyester / Filling: 100% ester / Stuffing: 100% polyester Purchased on Rakuten! It also has a mesh surface, so I think it can be used comfortably even in summer. My son, who sleeps on his stomach, didn't use it. Almost unused! Please consider it.