Color-coded screws easy-to-read stickers why can't all assembly be this pleasant? Note: this material attracts cats! Train them early to not scratch if you can. We had to wrap ours in foil for the first week...hopefully that does the trick.
If you need lumbar support keep looking. Ordered a back cushion to help but it pushes me out of the seat. The seat is very hard so if you have lumbar issues this is NOT the chair you want.