Executive Swivel Office Chair, 36-3/4" to 43-3/4" adjustable height, 250 lb. weight capacity, mid-back design, adjustable height transparent mesh back, transparent mesh waterfall seat, built-in lumbar support, triple paddle control mechanism, infinite-locking back angle adjustment, multi-tilt lock mechanism, tilt tension adjustment knob, height adjustable padded arms, heavy duty black nylon base, dual wheel casters, black (assembly required) (in stock items usually ship within 24 hours)