One screw slot on the right side of the chair's back panel (that should get secured to the right arm piece) did not allow for putting in the screw that belongs there. The threads of the screw slot did not accommodate the screw that should have fit in that hole. The corner of the right part of the backrest near the swivel hinge of the right arm has plastic edges that appear shredded...this ought to be a smooth plastic edge like the left side. These are manufacturing defects where the former defect mentioned is more severe than the latter. I will consult with Wayfair to see if the backrest can be replaced...that one empty hole with defective screw threads may make this chair less safe to sit on.