HANDLE: To raise the seat, remove your weight from the chair, then pull up on the pneumatic control handle.
To lower the seat, stay seated and pull up on the handle until you are at the preferred height.
In addition to raising and lowering the height of the seat, the handle also controls the tilt of the chair, from rocking back and forth to not rocking at all.
A tilt-tension knob underneath the seat makes it easier or harder to rock back in your chair, depending on which way you turn the knob.

Features:
*Executive high back chair help keep your back supported and body properly aligned
*Amply padded with deep cushion for sitting comfort
*360 Degree swivel function, 5 wheels for easy and smooth movement
*Faux leather upholstered can be easily cleaned and fade resistant, ideal for home and office
*Assemble Required

Specifications:
Back size: 20.5″x 27.6″
Seat size: 20.5″x 19.7″
Seat height (adjustable): 18.1″-21.7″
Armrest height (adjustable): 27.2″ – 30.7″
Total: L24.8″x W28″x H(42.1″-45.7″)
Item weight: 39.4 Lbs