Advanced Deluxe Teachers Fixed Back Chair The Deluxe Teachers Fixed Back Chair, generously upholstered for extra comfort. Gas lift as standard with options of Castors or Glides (Castors supplied as standard). Seat height 460mm-590mm Seat Width 480mm Seat depth 480mm Overall height 880-1010mm Overall width 660mm Overall depth 660mm Lead time: Approximately 4 to 5 weeks. (Orders placed in months end June / July / August / September / October can take considerably longer. However, we will advise you prior to processing your order ).