Ellie Ears is a positional support pillows that are simple to use! Use them with infants in supported seating, baby carriers, on the floor or change pad, for side lying and tummy time, and with toddlers - school aged children using supported seating. Ellie Ears are held in place by the child's body weight alone, and rest in the natural empty space at the back of the neck, when used in the seated or upright position. Outer: 100% Cotton Fabric. Stuffing: 100% polyester.