ESMERALDA Insert-Type Donut Pillow Used for about 2-3 weeks. Further improved! Insert-type donut pillow with adjustable height. "Insert-type pillow" with adjustable angle. We have further improved it based on valuable feedback from many customers! Baby pillows have been useful for preventing head-turning habits, flat head, and hair loss from sleeping. While maintaining a cute and adorable shape and design, it helps prevent flat heads in babies. The height is adjustable and supports the improvement of head-turning habits. The pillow filling is Teijin Washlon, which is light and fluffy with excellent cushioning. It is highly breathable and absorbs sweat well. It can be hand-washed, so it can be kept clean. ESMERALDA Baby Pillow, Flat Head Prevention, Insert Type, Donut Pillow, Improves Head Shape, Corrective Pillow, Head-Turning Habit Pillow, Baby Pillow, Made in Japan, Newborn, Usable from 3 months, Baby Pillow, Pillow, Flat Head, Sleep Hair Loss, Inclination, Head-Turning Habit Prevention, Hugging Pillow, Gift, Present, Congratulations on Birth, Preparation for Birth, Instagrammable