We have 9 black-on-black aerons in size B available. Eight of them are basic conference style, with only height and tension control for the tilt. They are pictured here around an 8 foot Herman Miller conference table. We are selling them for $259 each. We also have one that has height and tilt/lock, and the back support/lumbar pad, and it looks great with only very minor usage marks on the back where they tend to get marks. We are selling that one for $329. The pellicle (mesh fabric) has no flaws on any of these chairs.