Profile: Wedge support Products deals with Add On Head Rest, which reduces whiplash injury, improves head restraint, car seat comfort and safety. It is a revolutionary, scientifically designed, neck support cushion for car seats. It provides full upper back support to relieve tension & fatigue while driving, and has been proven to reduce the severity & duration of whiplash injury in independent crash tests. It fits most cars, vans and light trucks with adjustable head restraints or high back seats. We also help to relieve neck pain and back pain. Our new orthopedic back support cushion for cars improves driving comfort and safety. This back support protects against cervical spine injury following rear impact collision.