• Thick Padded Contour Seat and Back with Built-In Lumbar Support • Pneumatic Seat Height Adjustment • 2-to-1 Synchro Tilt Control with Adjustable Tilt Tension • White Vinyl • Height-Adjustable Arms with PU Pads • Heavy Duty Polished Aluminum Base with Oversized Dual Wheel Carpet Casters • GREENGUARD Indoor Air Quality Certified® Seat Size:. 19.5W x 19D x 3T Back Size:. 20.5W x 23H Max. Overall Size:. 27W x 25.25D x 44.75H Arms Max Inside:. 19.5 Arms to Floor Min:. 24.75 Arms to Seat Min:. 6.25 Seat Height Min: . 17.5 Seat Height Max:. 22 Seat Travel:. 4.5 Cube:. 6.1 Carton Dimensions:. 31 x 26 x 13 Weight: . 45 lbs.