Furniture of America Standard Mesh Pneumatic Adjustable Office Chair, Black Arm office chair in black finish; Transparent and dense mesh material back; Seat wrapped in black linen is generously padded for comfort Five-prong base with casters for mobility; Pneumatic lift for seat height adjustment Swivel/tilt mechanism for comfort; can be locked out Measures 19.5 by 35 by 22.25 Inch; Maximum Height 38.13; 30-day hassle-free limited replacement parts warranty