Hercules Series Big & Tall Executive Swivel Office Chair, 45" to 49-1/2" adjustable height, 500 lb. weight capacity, high back design, 22-1/2"W x 3" thick padded waterfall seat, with headrest, polyester upholstery, built-in lumbar support, tilt lock mechanism, tilt tension adjustment knob, padded arms, CA117 fire retardant foam, heavy duty silver nylon capped metal base with black end caps, dual wheel casters, black (assembly required) (in stock items usually ship within 24 hours)