The Series 7™ comes in ten different veneers: maple, beech, ash, cherry, oregon pine, elm, oak, walnut, dark stained oak or full dark stained oak with clear lacquer as well as two finishes: coloured ash or lacquer in all colours. All chairs are made of pressure moulded sliced veneer. Front upholstery or full upholstery is available in a wide range of fabrics and leathers, including welt leather. series 7 is also available with matching armrests. the base comes in four different versions: 4 legs (stackable in three heights), a height-adjustable swivel with castors, or a low or high bar stool base. All bases are made of chromed steel tubes.