Flash Furniture, BL-LB-8817-GG, Waylon Swivel Office Chair, 38-1/2" - 42" adjustable height, 250 lb. weight capacity, high-back design, ventilated mesh back, molded foam seat, back adjust 2" up and down, built-in lumbar support, multi-tilt lock mechanism, tilt tension adjustment knob, CA117 fire retardant foam, swivel seat, pneumatic seat height adjustment, height adjustable padded arms, heavy duty nylon base, dual wheel casters, black (assembly required)