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

If you are trying to figure out what is wrong with your chair, and how to fix it, we offer a twenty minute diagnosis via email, text, phone or video call for $20.00, which you can purchase at this link, https://www.ebay.com/itm/255193158645

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, but is ready to be put to work on your chair. This does not go up and down.

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

If you want multiple parts we can combine shipping.