XILI Car Seat Head Neck Ice Silk Rest Cushion Headrest Pillow(1 Pcs) Fine workmanship, excellent practicality and durability. Care for your neck, relax your muscles, make your driving life more comfortable, safer, more healthy! Neck pillow can effectively prevent the floating car and neck caused by a long bend , fatigue, pain. Impact of the head would suddenly thrown back, so that the crew was more serious, even fatal injuries External Material : Flax Asian grass material + PU / internal material: elastic filament