Outer shell: integrally colored, black textured polypropylene. Frame: extruded aluminum with polished, satin or black anodized finish. Steel support plate welded to the frame spans the width of the seat cushion. Upholstery: Multi-density urethane foam (11.5 cm maximum thickness); button tufting detail. Arms: seamless, black phenolic plastic. Tablet arm: fold-away tablet with black plastic laminate writing surface and vinyl edge molding (for right-handed application only). Column cover: polypropylene on pneumatic seat height models; steel with epoxy finish on mechanical seat height models. Jury Base: 20 cm wide steel base plate with textured black powder coat finish, 6 pre-drilled holes for countersunk attachment screws. Standard Castors: Hard wheel castors standard. Replacment Buttons: Set of 6 buttons for one chair.
