Modest, sturdy and reliable, this ergonomic 24 hour high back chair is host to a range of features which allow adjustment to suit the user's preference. A contoured backrest with a 3D curvature incorporates lumbar and spine support. A multi-set synchronous mechanism offers back height, back rake, forward seat tilt and seat slide adjustment. It also provides tension control adjustment to allow for the individual's bodyweight and is lockable in the upright position. A sturdy gaslift offers easy seat height adjustment and multi-directional, height adjustable arms as well as a large black nylon base fitted with twin wheel castors complete this impressive offering.