For sale is a parts lot for Herman Miller Aeron chairs. All parts may be new or used, but are overall in great cosmetic and functioning condition. If used, they were pulled from a working enviornment. In the lot: 1. (1) Seat Mesh (Size B) + Screws -- Used -- Has one broken fiber that is highlighted in the pictures. 2. (1) Seat Foam -- New -- Never installed, will fit all size chairs A, B, C. 3. (1) WB Seating Spray Paint - Graphite color -- Used -- About half left, can touch up many chairs still. 4. (2) Arm tilt assemblies -- Used -- Older spring style, just needs new indexing plates. These can be 3d printed. 5. (2) Arm springs and (1) retaining ferrule -- Used -- Both of these have 1 small crack (pictured), but work perfectly in an assembly. 6. (2) Retaining clips for the seat pivots. 7. (1) Arm Adjustment Thumbwheel - has some light cracking, but works perfectly in operation. 8. (5) Caster wheels -- New -- These were purchased off Amazon and never used. Slightly larger than factory if deisred. Comparison picture available with OEM wheels next to it. Please note OEM wheels nor any of the chair assembly pictured is included. Ships from Everett, MA 02149. USPS Ground Advantage. Lower 48 CONUS only. Happy Bidding!