Fellowes Professional Series Back Support, Black (8037601) (Pack of 4)

Professional back support allows for optimal working comfort. A 2-tiered support system features a mid spinal support for good posture, and a lower lumbar support that conforms to natural body curvature. Tri-Tachment system eliminates the need for readjustment. Memory foam cushions self-adjusts for custom support. Fits most office chairs.