Abstract: A child car seat for a vehicle. The vehicle has a shoulder belt, and the shoulder belt includes a webbing. The child car seat includes a structural seat back and a vehicle-shoulder-belt-receiving first hook attached to the seat back. The first hook substantially encloses a first through slot, wherein the first through slot extends from front to back. The first hook includes two hook members which are spaced apart from each other by a first gap which is larger than the thickness of the webbing. The webbing is engageable in the first through slot.