2-to-1 Synchro Tilt Managers Chair with Adjustable PU Padded Arms Features: Thick Padded Contour Seat and Back with Built-in Lumbar Support One Touch Pneumatic Seat Height Adjustment 2-to-1 Synchro Tilt Control with Adjustable Tilt Tension Height and Width Adjustable Arms with PU Pads Heavy Duty Nylon Base with Dual Wheel Carpet Casters Dimensions: Seat Size: 20.5W x 19D x 3.5T Back Size: 19.5W x 21H x 3.5T Max. Overall Size: 41.5H x 27.25W x 25.5D Arms Max Inside: 21 Arms to Floor Min: 24.75 Seat Height Min: 17.75 Seat Height Max: 21.75 Seat Travel: 4 Cube: 5.9 Carton Dimensions: 14 x 24.5 x 29.5 Weight: 46 lbs.