These are somewhat difficult to assemble with the tiny allen wrench but seem sturdy once they're complete.  Two of four chairs had velcro underlining pieces that were ripped and one floor protector fell out due to the nail being bent by mfr.  I am hopeful that Wayfair will replace these three items.  I might have returned all of the chairs if the return freight was not $90.  The chairs are much larger than anticipated but maybe I'll get used to them over time.