These Herman Miller Aeron Mesh Ergonomic Office Chairs are considered the best on the market. maximum comfort just read the reviews. I2 Available 
Good Condition. all Mesh is good. only marks would be very minor.
Adjustable Height. Back Seat Tilt. Adjustable New Lumber Pads and New Padding on front of seats with Adjudtable Height Arms with movableArm pads 
Great Chairs Pick up Taunton Somerset great price. Viewing very welcome