OFM AirFlo Series Executive Task Chair - Ergonomic Work Chair, Burgundy (651-M13) Modern, ergonomically designed office chair features breathable mesh Back and adjustable lumbar support cushioning Multiple positioning adjustments including knee tilt, Height adjustment and tilt Tension/Lock offer customizable comfort Adjustable-height arms allow you to personalize your chair to reduce muscle strain 5-Star wheeled base with 250 Pound weight capacity allows for stability and easy movement on any surface 3" thick, Stain-resistant fabric Seat is available in a variety of colors to suit your decor