Form Chair Swivel 4L Full Uph. Black AluThe upholstered Form chair emphasizes the main concept of the design and is a beautiful illustration of how Form's strong design language and well considered silhouette gets a different, sensuous dimension and increased comfort. The Form Swivel chair is a continuation of the popular Form dining chair featuring a fabric or leather upholstered shell with a swivel base in aluminum giving it a masculine and exclusive look as well as comfortable freedom of