Serta Style Hannah II Office Chair, Bonded Leather, Black Deep, layered body pillows offer the body a serene and tranquil seating experience Contoured lumbar provides exceptional support for the lower back. Sculpted metallic accented arms with pillow soft pads provide added comfort Durable multi-surface dual wheel casters and heavy-duty, five-star base Pneumatic seat-height lift with adjustable tilt tension knob and recline lock out features Seat size is 21.25 inches wide x 20 inches deep. Back size is 21.50 inches wide x 28.25 inches high