Boss 600 Series seating IS A POPULAR CHOICE OF BREAKOUT CHAIR. THE DISTINCTIVE DESIGN OFFERS SUPERB LEVELS OF COMFORT AND IS IDEAL FOR THIRD SPACE, FOYER AND BREAKOUT LOCATIONS. 600 Series seating is available with a polished aluminum 4-star swivel base. The mainframe is constructed from plywood with molded CMHR foam throughout and can be upholstered in a wide variety of fabrics.