Oddly, I just purchased a Nitro Concepts chair (black with red back center panel, side seat trim and wheels), on sale from Newegg for $108.00 free three day shipping. The price and the fact that the armrests have pads, worked for me. No instruction book provided. Only a 8-1/2 x 11" diagram sheet. It would have been nice to know how difficult it is, to attach the back to the armrests. If you don't follow the exact steps as shown in the diagram. I found it very hard aligning the holes on the armrests with the holes in the back. Other than that, I think I got my money's worth. Further, the carton arrived with a hole in it, with the adjustment lever sticking out of the box. I immediately called Newegg to report the condition of the carton, in case the part was
damaged. Their usual great customer service, gave me a $10.00 e-credit, and said that I could either ship the chair back, or contact them for a price adjustment. 🙂