These apply pressure one the arm assemblies so you can adjust the seat and back.

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://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.

If you want multiple parts we can combine shipping.

Pre-owned Parts, has not been cleaned, black plastic wheel has scratches, and will need touch up paint.

If you try to put these on some older style chairs it will not fit because they had the larger 13mm bolt holes.

This is for one silver label, one bolt, and one plastic round piece it screws into for the Newer and the Newest style chairs.