Chairs take the most strain on their back legs, where they bear the weight of their user's upper body. Prouv� took this into account very succinctly in Standard Chair. Tubular steel piping is enough for the front legs that take relatively little strain, whereas the back legs are made of voluminous hollow sections which pass the strain on to the floor. Choose from five frame/seat color combinations which will dramatically add to the decor of your home. Features: -Available in five styles . -Powder-coated sheet steel and tubular steel frame . -Seat and backrest in untreated oak or oak with dark stain. -Varnished oak for natural wood effect . Specifications: -Overall Dimensions: 35.75" H x 16.5" W x 19.25" D . -Seat Height: 17.75" . Design: -Design is the process by which almost all objects in Vitra's surroundings are instilled with a specific design and function - from cars to paper clips, from clothing to chairs. And design does not just mean giving things a shape. Design creates the basis which enables things to function in the desired manner. It is a process in which complementary but often mutually contradictory requirements have to be met (comfort, technology, ergonomics, ecology, economics, aesthetics). Design can be successful only when the balance of all these factors is attained.. Quality: -Once in the factory, Vitra staff manufacture furniture to precise standards, individually ensuring the quality of each product.. -Vitra has been certified for DIN EN ISO 9001: 2000.. -Vitra's focus on quality does not end at the factory door - they believe that providing clients with exceptional service is just as important as manufacturing furniture. In order to make certain Vitra clients enjoy consistently high quality in all Vitra products, they have set up their own test center which monitors products against criteria that are far more stringent than the statutory standards.. Ergonomics: -Ergonomics is an applied science that studies the relationship between human beings and machines. Vitra produces furniture that responds to the ergonomic requirements of the body and as a consequence has a positive effect on health and well-being. All Vitra products (except for the experimental series Vitra Edition) have been tested by independent institutions. They comply with prescribed standards under the European Directive on VDU Work and are marked with the GS seal (= Gepr�fte Sicherheit or Tested Safety, seal of the independent certification company LGA).. Ecology: -Vitra's contribution to ecological conservation does not stop with a close examination of materials and processes. All aspects of the company's work involve ecological thinking.. -In 1991, Vitra set up an internal ecology committee to discuss environmental topics. This team identifies new tasks, and its project teams work together to find solutions.. -Vitra uses only non-CFC foams and adhesives free of toxic solvents; all possible materials are recycled. Wherever possible, Vitra uses recycled materials. . -Vitra's goal during production is to minimize noise and emission levels as well as to reduce waste. Packaging materials are kept to a minimum and re-used as often as possible..