The shell consists of two parts; a base and a back shell, both are made from hard polyurethane foam with fiberglass reinforcement. Both parts have an embedded steel frame and the base is mounted nozag springs as well. The base and back shell are assembled with 6 steel brackets and Hex screws (can also be disassembled for moving with a Hex key no.4). The outside of the back shell and base is covered with a thin, soft layer of polyurethane foam and wadding.
The base consists of 4 legs in three parts; an upholstered trumpet matching the base shell, a satin polished aluminium cylinder leg and a felt glide to protect the floor (1 set of large glides are included with the sofa free of charge)