PRICES MAY VARY. Neck Pain Relief by firmly supporting your Neck, Head and Shoulder when driving. Comfortable for Passenger to nap on road trip. Adjustable elastic strap according your height. Ergonomic shape contoured to your neck fits most car seat. Risk-Free Purchase -30 days hassle free return policy, 12 months product after-sales support ! Let your shopping more assured! 1. Why should we have the head rest pillow for car seat？ - Driving for long time and keep a posture which can easily tr