First off, this was the EASIEST ASSEMBLY ever!  I had it unpacked from the shipping box, protective plastic/paper removed, and completely assembled in less than 4 minutes.  Came with base, set of wheels, piece that holds chair, and chair back. It literally took longer to unpack than to assemble. I debated on colors and ended up choosing black. It’s sleek, comfortable, and will go well in my office. Perfect chair for a small desk!