As the car ownership is increasing, more and more children travel by car, but car seats and safety devices are not suitable for children's body size Chinese crew members have a large number of children die each year from traffic accidents, the most common in frontal impact form, the main reason is that the child safety seat utilization rate is low false use etc The child safety seat itself is too heavy and the binding path of the safety belt is not clear and inappropriate, so the equipping rate of the child safety seat in the car is very low, and the protection effect is very poor. So that R129 booster seat is the production in order to adapt to this trend.