Serta Air Health and Wellness Executive Office Chair, Light Grey Featuring the Air kinetic lumbar that adapts to your movements for continuous amazing lumbar support , Fortified base layer extends stability and durability Deep, ergo layered body pillows offer the body a serene and tranquil seating experience. Seat Back Height-25" Ergonomic seat-side cable actuated levers for convenient height and tilt adjustments Soft upholstered arm pads on stylish sculpted arms with black accent inserts Pneumatic lift with adjustable tension and lock out feature ; Smooth Eco-Friendly Bonded Leather