Boss Office Products Black Contemporary Ergonomic Adjustable Height Swivel Task ChairPatented contemporary style design Ribbed back with lumbar support 4in padded mesh seat Upright locking position Gun metal finish base with black caps Padded black Caressoft loop arm Adjustable tilt tension control Pneumatic gas lift seat height adjustment Hooded double wheel casters Features Collection Name N A Color Finish Family Gray Manufacturer Color Finish Black Back Material Mesh Seat Material Mesh Frame Material Metal Wood Species Poplar