Abstract: A self locking container formed of a series of side, bottom, and end walls, all integrally folded together, and incorporating one or a pair of covers, the container generally formed of a unitary blank of paperboard or corrugated material, that may be folded into its usable configuration. Intermediate each end wall and side wall are bellows flaps, that fold contiguously into adjacency against the outer surface of each of their respective end walls, during folding of the carton, and a connecting flap formed along the upper edge of each end wall folds overlying the upper edges of the disposed proximate bellows flaps, to interlock them into position, for forming the body or lower portion of the container.