Boss Office Products B970 Traditional Executive Chair in Black Beautifully upholstered in Black CaressoftPlus Box arm styling with hand-applied antique brass nail-head trim Metal base with mahogany wood finished caps Hooded double wheel casters; Maximum Seat Height : 22.5 inches Pneumatic gas lift seat height adjustment Beautifully upholstered in Black CaressoftPlus Box arm styling with hand-applied antique brass nail-head trim. Metal base with mahogany wood finished caps Hooded double wheel casters Pneumatic gas lift seat height adjustment