Accomplish your office duties in comfort and style with this High Back Ergonomic Office Chair Thick padded seat for spine support, one-touch pressurized seat height adjustment for ease-of-use, and 3-way adjustable (height, width, depth) padded armrests Breathable mesh back provides for optimal lumbar support Synchro control seat slider and adjustable tilt tension make sitting for extended periods of time enjoyable Overall size: 28.75” W x 28.75” D x 40.5-46” H; Approved for commercial use - This chair meets or exceeds ANSI/BIFMA standards