Structure: frame in different kinds of wood anf Flex plywood. Support with in-terwoven elastic webbing, completely co-vered and reinforced with polypropilene. Padding: seat and back covered with elastic polyurethane foam. Feet: solid wood wenghe-stained on fixed version. Black varnished metal base (not visible) on swivel version. Features: pivoting base with automatic return func-tion to initial position.