Flash Furniture, BT-20180-GG, Hercules Series Big & Tall Executive Swivel Office Chair, 43-1/2" to 47-1/2" adjustable height, 500 lb. weight capacity, high back design, ventilated mesh back, 22-1/2"W x 5" thick padded fabric upholstered waterfall seat, adjustable built-in lumbar support, tilt lock mechanism, tilt tension adjustment knob, padded flip-up arms, CA117 fire retardant foam, heavy duty black metal base, dual wheel casters, black (assembly required) (in stock items usually ship within 24 hours)