>Back & Seat: 25mm-thick high quality integral molded PU padding with inner plywood for extra support, easy toclean and maintain>Support: Die-cast aluminum, powder coated>Arm: Die-cast aluminum, powder coated>Beam: 1.5mm thick, 60mmX60mm rectangular cold-rolled steel tube, powder coated>Table: MDF with laminate finish, 520mm(L)X400mm(W)X18mm(T), Optional middle table or end table>Optional with or without middle arms