One set for adjustable arm yoke, made of metal and plastic, color is a Black,

We sell over 100 different used parts. If you want to figure out what is wrong with your chair, and how to fix it, buy our twenty minute diagnosis via email, text, video or call for $20.00, purchase at this link, https://rcannon8156.mystorefront.online/?l=1&product=10059&action=product

If you are in Florida we might be able to come to your location and repair your chair for you, if you are interested please ask us for a quote, so we can let you know how much it will cost.

Please let us know if you have any questions.

These are pre-owned, they show wear, gouges, nicks, scratches, scuffs, but they are ready to be put to work on your chair.

This is for one set that includes the curved metal spring with the plastic part that the spring steel clips into, and the thick flat metal plate. They fit the size A, B or C chair and are genuine OEM pieces for the Aeron office furniture line by Herman Miller. The last photos are for demonstration purposes, the arm yoke, thumbwheel, plastic shim, and bolt are not included.

If you want multiple parts we can combine shipping.