Chairs have a good rocking  swivel actions. Assembly on the first chair was fairly straightforward for one person, the second chair needed two people as a couple of the parts had a build up of paint making them difficult to tighten securely, also a few if the washers were over painted  stuck together. I was able to shake the ‘life’ out of them in a glass jar to break them apart. Also used full sized combo wrenches  socket wrench instead of the supplied little wrench.