Armrest no longer secure or broken off?
You can repair this yourself with an original Herman Miller Aeron mounting set.
This set is suitable for one armrest. Can be used for the left and right armrest.
If you have a problem with both armrests, you should buy 2 mounting sets.
NOTE: this is the old type with the knurled wheel. This set is not suitable for the new type of armrest with a clip.
Required tools: Allen key or bit 5mm and Torx screwdriver or bit T-25.