Seat and back frame are made in FSC™-certified (FSC-C028824) wood. The back frame is padded with cold foam and wadding, while the seat features zig-zag springs, felt, cold foam, and wadding. The modules are upholstered in high-quality textiles, imitation leather, or leather, with a thin layer of wadding underneath. Metal brackets are used to connect the modules. Plastic: Plastic is a synthetic material made from various organic polymers, such as polyethylene or PVC. Table: MDF with oak veneer and a clear water-based lacquer finish. Legs made from solid oak with black water-based lacquer.