One left, made of metal, color is a Black Graphite, genuine OEM parts for the Aeron office furniture line by Herman Miller.

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.

This pre-owned, there are gouges, nicks, scratches, scuffs, and will need touch up paint, and a cut through the metal, but is ready to be put to work on your chair. This uses the thumbwheel to go up and down.

This is for one left side adjustable arm yoke and is genuine OEM part for the Aeron furniture line by Herman Miller.

If you want multiple parts we can combine shipping.