This drafting stool gas everything I wanted, adjustable height, footring, swivel seat, rolling casters, and thick padded seat.  I also purchased two of these with backs at the same time. The only problem is that the cushion seems to be rather firm.  It's my hope that will get softer as time goes on, because you don't, in any way, sink into these chairs, you just kind of rest on top.  This is the reason I took a star off.