Hercules Series Big & Tall Executive Swivel Office Chair, 42-1/2" to 45-1/2" adjustable height, 400 lb. weight capacity, high back design, 22"W x 3" thick padded waterfall seat, with headrest, fabric upholstery, built-in lumbar support, tilt lock mechanism, tilt tension adjustment knob, without arms, CA117 fire retardant foam, heavy duty chrome base, dual wheel casters, black (assembly required) (in stock items usually ship within 24 hours)