This chair is not a quality chair. Being an engineer, I put together a lot of furniture, but this chair is ridiculous. None of the holes line up, the Allen key that comes with the supplied hardware is the wrong size. Putting this chair together requires a trip to the hardware store, and you can expect to purchase a large diameter drill bit to make the holes line up, an Allen key ( or the whole set, as this is what most places sell ) just to put the chair together, and you should be very mechanically inclined. Otherwise do not waste your time or money on this chair, as you can do a lot better for the money without the massive frustration that accompanies it. I am actually surprised that Wayfair continues to sell this chair after multiple reviews stating the same issue This! This chair will be sent back.