Abstract: A child safety seat assembly, including a base for being positioned on a vehicle seat bottom. An anti-rebound bar is carried by the base and extends outwardly and upwardly from a foot end of the base for engaging a seat back of the vehicle seat to which the seat is attached for retarding inertia-induced rotation of the base and the attached carrier by transmitting rotational force applied to the seat during a sudden change in velocity into the seat back of the vehicle seat onto which the seat is attached.

Abstract: A booster seat having seat back carried by a seat bottom. The seat back includes first and second frame members mounted for slidable movement relative to each other. A flexible band interconnects the first and second frame members wherein relative movement between the first and second frame members causes movement of the band relative to the second frame member. A lock is provided for being carried by one of the first or second frame members for engaging cooperation with the band. The lock is reciprocable between a locked position wherein the lock locks the band against movement, and an unlocked position wherein the lock releases the band and allows movement of the second frame member relative to the first frame member, thereby adjusting the height of the seat back.