First off, these are inexpensive chairs made overseas but the quality is surprisingly a bit better than you would expect for the price. The back inserts are very light plywood,  this is not an issue for my use but may be if you're hard on furniture.  Assembly is required and at least one of the 4 I purchased had some missing hardware and one hole that was not factory drilled.  Assemble took about 30 minutes per chair, except for the one without the hole which required me to get out the drill and make the angled hole myself.  The good parts, the chairs are medium duty and seem to be sturdy enough, they have a good finish, the seats swivel as advertised and appear heavy duty.  They do have what appear to be nylon floor guards on the bottom of the legs.