This is a very nice looking desk chair.  My husband assembled it in about 10 minutes.  Comes with everything necessary to complete, including the wrench to tighten the nuts.  The back and seat are all one piece- blacked ribbed cushion.  The coasters are very sturdy and roll easily.  It has a lever to adjust the height of the seat- up or down.  It is a very comfortable and sturdy chair and looks good at my computer desk.