Head restraint:
It is meant to protect the occupants of front seats from whiplash injury of the neck in case of a rear impact. It is usually fixed into the top of the seat back and is adjustable so that the top is at the eye level of the passenger.
It is meant to protect the occupants of front seats from whiplash injury of the neck in case of a rear impact. It is usually fixed into the top of the seat back and is adjustable so that the top is at the eye level of the passenger.