This is a pillow that you can attach to the straps of the car seat belt. When your child falls to sleep it supports the neck, but when they are awake they love to cuddle with it. You can use it with or without a car seat, all you need is a seat belt. Directions are included to made the differant pillows shown. My grandchildren love to play with this pillow and sleep with them in the car, but I love that they can't drop them!