Thank you for viewing. Newborn-friendly flat-head prevention pillow Baby pillow, head-turning habit correction, donut pillow Geo Pillow ・Pillow body ・1 cover ・Box ・Instruction manual ■Color: Triangle Beige ■Size: S Approximately 200 x 300 x 40mm (0-6 months old) Suitable size: Head circumference目安40cm or less I bought this to prevent flat head while using a mobile during the day, but my baby was already at an age where they moved around a lot, so it would slide off even if I put it under their head, and I couldn't use it properly... The actual time the baby's head was on it was only a short while. I used it for about 3 months, but not during sleep. It's in good condition, but I have washed it several times. If you don't need the box, I will discount it by 400 yen, so please let me know♪ ■Product Description ～Made from the voices of mothers～ Flat head and heat rash prevention baby pillow Geo Pillow ・Scientifically developed 3D structure to prevent flat head ・Excellent breathability air mesh to prevent heat rash, stuffiness, and suffocation ※The cover will be attached to the pillow before shipping. ※The box will be wrapped in a paper bag for shipping.