These have the removable metal sleeve and attach the link to the seat that allow some play so it can move.

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 is pre-owned, shows wear, but ready to be put to work on your chair.

This is for two Allen head bolts with removable metal sleeves and nuts on the end which hold the seat to the seat links. These fit the size A, B and C chairs and are genuine OEM pieces for the Aeron office furniture line by Herman Miller.

If you want multiple parts we can combine shipping. We sell these for $5 a pair plus $5 for shipping within the continental United States at our store, www.chairbits.com under the Products Menu do a search to find what you are looking for. Thank you for your time.