Abstract: The invention relates to the use of one piece foldable boxes in the area of packaging, in particular the use of a single piece foldable and disposable boxes for the packaging of cat litter material. The invention employs a novel cover and hinge member that folds beneath the lower portion of the box for storage. The box effectively seals the contents while in a closed position with double wall thickness and a latching mechanism that doubles as a carrying device on larger boxes. The design permits uniformity of tolerance throughout box sizes and construction materials. The box includes a lower box body (or base), four side walls integrally attached to the base, and a cover (or top) with three sides that is connected to the lower box body by a novel hinge member that creates a fourth side wall to the cover only when the box is in a closed position.