During the Middle Kingdom plain utilitarian furniture was introduced. At the necropolis of Beni Hasan, a number of simple stools have been discovered, with tapered legs, and some tables that have tops edged with a cavetto cornice and torus moulding—a design that was continued into the New Kingdom. First seen on the roof of the hebsed pavilion within the step pyramid complex at Saqqara, this architectural feature was quickly incorporated into both box and table design. Stools represent the largest surviving corpus of furnishings and were popularly used in the home by both children and house guests. Animal-leg stools were featured. The bull-legged type was used during the second and third dynasties, but by the Middle Kingdom a number of gazelle-legged and lion-legged stools are known. The lion design continued to be popular, as it is found throughout dynastic times. By the Middle Kingdom, folding stools were also made for ease of storage and transportation; they had two rectangular interlocking frames pinned together with bronze rivets. Examples from the New Kingdom have the ends of their cross spindles finished with ivory-inlaid goose heads, whose bills act as the joint with the floor rail. Lattice stools were made from a framework of thin rails strengthened by angled braces; they have a double cove seat, made from either curved slats of timber or from cord, on which would have been placed a thick cushion. Three legged stools were popular with the artisan class, as can be seen in the wall paintings of many New Kingdom tombs at Thebes. Their design allowed for firm resting on an uneven workshop floor. They were designed with a dished seat, under which the three legs were jointed at an angle.