So my chair arrived today, I never got a tracking number so it was a nice surprise. Everything works just fine, assembly only took a few minutes and I didn't have any issues with parts not fitting together correctly. I do have one concern, I'm not sure if I've installed the armrests in the correct orientation. They seem like they have a specific side that is supposed to be facing forwards, but I can't find any markings that would point it out. Is it possible to mount these on backwards or are they built symmetrically?