Start sitting more comfortably with this Fellowes Professional Series professional back support. The iInnovative Tri-Tachment attachment allows for easy and stable attachment to the chair. The 3-part lower memory foam cushion supports the lumbar region and the upper cushion the thoracic spine. This ensures an upright sitting position. The back support is suitable for most common office chairs. The built-in... Microban® antibacterial protection prevents the accumulation of harmful bacteria throughout the product's life.