Molded PP shells on beech wood legs give this set of four the classic mid-century silhouette at a weight that makes rearranging a room easy, about 7.7 pounds per chair. A black reinforced steel frame ties the legs together for extra rigidity, the ergonomic shell supports the back through a meal, and non-scratch plastic foot pads protect hard floors. Each chair measures 18 by 19 by 33 inches with an 18 inch seat height. The smooth surface cleans quickly, and the four chairs work together or spread across a dining room, living room and office. Simple assembly needed.