Serta Back in Motion Health and Wellness Executive Office Chair, Black Featuring the BIM Active lumbar that pivots with your movements for continuous amazing lumbar support Deep, ergo layered body pillows with breathable perforated zones offer the body a serene and tranquil seating experience Hand sculpted Iridescent Silver painted arms with soft padded armrests for exceptional hand, wrist and forearm comfort. Seat dimensions: 20.75 inches high x 18.25 inches deep x 18.75 inches wide (inside) x 25.25 inches wide (outside) Ergonomically positioned seat-side cable actuated levers control the pneumatic lift and lock out features. Seat Back Height : 18 Inch Heavy duty base in a Iridescent Silver finish meets or exceeds BIFMA standards ; Smooth Eco-Friendly Bonded Leather