Thank you for viewing! This is a baby pillow that can be used from newborns to 3 years old, preventing flat head, with three-sided adjustment, preventing head-turning habits, preventing spit-up, and is washable. The surface is cotton, and the back is mesh, so it has excellent breathability. I used it for the first 3 months after my baby was born. Thanks to this, there was no spit-up, and my baby's head shape was perfectly round. It's hard to see, but the middle of the pillow is slightly yellowed. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ I also have baby clothes, kids' clothes, and other childcare items for sale! If you purchase multiple items together, I can offer a discount♪ Please comment or request a bundle if you'd like ( ⁎ᵕᴗᵕ⁎ )❤︎ ↓ Please take a look here. #Aki'sChildcareGoods