The back gets bolted to the seat. Except the holes that house the bolts were drilled incorrectly so the bolts wouldn't go all the way in and the back wobbled as a result. I called & they shipped a replacement.That was quick & easy. But they didn't want the defective one back. Rather than inspect the bad one and learn from what they did wrong they told me to throw it away. Way to add to the landfill Staples!
I read through the reviews to get a good sense of the product and would like to address both the good and the bad. The good it’s comfortable for long sitting spells. I bought this as an alternative to the herman miller aeron chair and I can say I’m glad I did. It’s solid and I could buy three of these for the price of one of the herman miller chairs. The bad reviews focused on staples holding the material coming out and the difficulty of assembling yourself. There’s no 100% foolproof manufacturing process the real test is whether they were able to get it replaced without hassle. Read the reviews with that in mind. Also the manual is all pictures with no wording. If you take it step by step and slow it’s not a problem. A couple of times I looked multiple times to make sure but it went together rock solid. Love it will get again even if it wears out in a reasonable time.