We have a large quantity of black mesh Knoll Chadwick ergonomic office task chairs. Small footprint. Great for home as well as small offices. Work as conference room chairs as well. Very comfortable chairs. These have pneumatic height adjustability, adjustable arms, tilt tension control, and tilt lock. Don Chadwick, the designer of this chair, is the co-creator of the Herman Miller Aeron chair. All chairs are in very good condition. Selling for $200 EA. Pick up from our warehouse in Saddle Brook, NJ. Please email me if you have any questions. Thank you.