OFM 611-20 Ergonomic Managers Chair, Ebony Contoured molded foam in Seat and Back for all-day support Back Height, tilt, Lock and gas-lift Seat Height adjustment for customized comfort 7-Position height-adjustable padded arms for upper body support 360-degree swivel and Sturdy 25" 5-star base with casters and 250lb weight capacity Upholstered in easy to clean, Stain-resistant fabric