Box is a collection of upholstery that includes an armchair, two or three-seat sofas in two different sizes, four-seat sofas as well as numerous other elements for a wide variety of arrangements. One-piece frame in double-panelled pine and poplar. The feet are in steel with a chromed or satin, nickel finish. Spring base with woven elastic straps in coated rubber. Padding in differentiated-density polyurethane foam. Acrylic fibre cover with polyamide velveteen backing. The seat and back cushions are in prewashed and sterilised goose down, or in polyurethane foam covered with acrylic fibre layers. Leather or fabric upholstery. The covers in the fabric version are fully removable. Available also with valance. The armchair comes with a fixed backrest or a flexible steel backrest.