Mid-Back Fabric Executive Swivel Office Chair with Three Line Horizontal Stitch Back and ArmsUpgrade your office seating with this mid back upholstered swivel task office chair. A mid back office chair offers support to the mid to upper back region. Chair easily swivels 360 degrees to get the maximum use of your workspace without strain. The tilt lock mechanism rocks tilts the chair and locks in an upright position while the tilt tension adjustment knob adjusts the chair's backward tilt resistance. The pneumatic adjustment lever will allow