Very comfortable in driving with the safe neck, your neck when in act of acceleration and sudden stopping reduce pain.- The headrest pillow is high density memory foam, slow rebound and no deformation.- The belt of the neck pillow is elastic and adjustable, it can be better fixed to the seat. A Comfortable Safe Car Seat Sleep Pillow for Toddler, Kids, Baby, Infant Allow the child to enjoy a peaceful nap, allowing you to concentrate drive on the road! Complete adjustability—the front piece has a sticker attachment and comes completely off—you can place it at angle angle you choose, for 1-4 year old toddler. Material: high quality sponge and soft cotton, make the kids head support safe and comfortable for use. Keep baby's head not dropping on his chest. child's head and neck are in well position. Multifunction: Suitable for any baby seats, car seats, strollers, etc.