One of the metal frames had a big bubble of metal in the hole where the screw goes. You can’t screw it in more than halfway. I contacted the company and had to submit photos and they were going to send me a new piece; that was months ago and it never came. I ended up selling the chair.  The cushion is also very thin. I had to buy extra padding to go underneath it so that you couldn’t fill the metal wire underneath. I’m not a large person only 140 pounds.