This Chair is great for the Price, The only reason I did not give this five stars is it gave me problems with the bolts starting in the back rest. There is A Jig in most cases that hold the brass threaded inserts in position while the plastic cools and hardens. They must have moved a bit because they were not Parallel with each other, so I went and bought a little bit longer bolts that made it ease-yer to assemble.  It worked and i am confident I have A trust worthy chair and very comfortable. J.D.S..  Be sure not to force the bolts at all they will damage the inserts or even tear them from the plastic.