The stacking variant is characterized by a slender and elegant four-legged base with a very strong steel construction. The steel stacking base is available in black, and the glides attached can adjust to the surface ensuring a secure and stable seating experience.The molded connectors attaching the shell of the chair to the legs follow the color of the polypropylene shell. If an upholstered stacking chair is desired, then the molded connectors will be black.