I have a couple of used Aerons and I really like them. I have aftermarket 3" castors on mine that work better on carpet. I bought them from a brick-and-mortar s

I have a couple of used Aerons and I really like them. I have aftermarket 3" castors on mine that work better on carpet. I bought them from a brick-and-mortar shop so I could test them out, see if a wheel was sticky, etc.