Mass pressureDesign by Dror The Mass Pressure armchair is the result of compression as a means of transforming a cubic metre of foam into a functional object. A tubular metal frame provides a desirable seating position, where the foam is fixed, giving the armchair an innovative and eye catching expression. Materials: The structure, made of tubular metal, is composed of two separate elementsthat compress a monoblock of polyurethane foam cut into three elements.