Capable of being fully customized to suit the body shape and posture of any sitter, this TEMPUR material chair has 11 separate points of adjustability, providing welcome relief from the daily discomforts of one-size-fits-all chairs. Using hydraulic levers, the user can adjust the height of the seat, back, armrests and (in the case of the Executive Chair) headrest; as well as the seat's angle, tilt and tension, the backrest's angle and depth, and the armrests' angle and width. The seat and back cushion are both made of a highly comfortable conforming material, which molds itself to fit the body of any sitter, and was pioneered for use in the space program. Seat height: 16 1/2" to 21 1/2". Backrest 19 1/2" W x 27" H. Seat: 23 1/2" W x 18 1/2" D. (65 lbs.) Executive Office Chair. Seat and back cushion covered in black leather. Headrest: 5 1/2" H x 12" W. No premium or express delivery offered on this item.