This pillow makes traveling, sitting at your desk, reading or resting much more comfortable. It helps to maintain proper back support. It is made of high quality polystyrene micro-beads for ultimate comfort. The stretchy polyester and spandex zippered cover is machine washable. Perfect for the office, plane, train home or car. Hook it on to your carry on bag, or attach it to your headrest or seat and you are set for comfort on demand.