PREMIUM MATERIALS - The car seat headrest pillow is made of soft and thick memory foam, ABS and leather for safer and stronger support. The removable PU leather side cushions are smooth with fine stitching and no peculiar smell. Memory foam that disperses pressure and rebounds slowly reduces the stress caused by shock during driving and ensures a healthy ride. Head and Neck Protection - Scientific ergonomic design supports head and neck more comfortably and prevents fatigue from pain caused by prolonged neck bending. Headrests on both sides protect head from hitting doors and windows. Adjustable Design - Freely adjustable for different car models, the holes move at a distance of about 50-200mm, which ensures it is suitable for children and adults of different sizes. The distance between the bars can be continuously adjusted in width to achieve a comfortable sleeping position. Easy installation - no tools required, one-touch connection, locking and parallel removal of the safety