The Solution Z-Fix is a child car seat which grows with the child and can be used for children from three to twelve years old. With twelve height settings and automatic width adjustment, it is possible to move the head and shoulder protectors to the correct position for each child. This is achieved quickly and simply thanks to a one-handed setting mechanism. An adjustable headrest ensures that the head always remains in the safety zone. In addition, safety pads actively bring the head into a safe position in the case of an accident.