This MIMOS pillow is basically brand new only used once and realized it was too small for my babies head so had to buy a size larger!! Physician recommended and clinically proven for flat head syndrome(Plagiocephaly), Air Flow Safety(Anti-Suffocation TUV-Certification)!!! This infant pillow has raging reviews if your baby is born with a flat head, just check online!! Refer to internet for measurements, reviews, and any questions you may have😉