This chair by Office Star® features pneumatic height adjustment, built-in lumbar support and locking tilt control. Ideal for bedrooms and home offices. Faux Leather Seat and Back with Built-In Lumbar Support Pneumatic Seat Height Adjustment Locking Tilt Control with Adjustable Tilt Tension Assembled Dimensions 27.5"W x 28"D x 42.25"H Easy to assemble Work Smart™ 22.00-in x 21.25-in Black Faux Leather Chair with Padded Arms