Abstract: A hand foldable and portable article of furniture comprising planar back and right and left side members hinged at edge surfaces thereof such that the right and left side members swing between a folded position with the side members on a back of the back member and a unfolded position in which the side members are substantially perpendicular to the back member and upper edges of the back and side members are interlocked in mating grooves in a planar top member, one of the back and side members being transversely bendable at its upper edge to spring lock into its mating groove to tightly interlock the article of furniture in its unfolded position.