I've had the Griot's version of this stool for a long time now & it seems Adam's has their own version of the same exact stool but with the Adam's logo on it.
The Adam's detail stool / seat has a little tray in the middle for storing towels, tools, your phone, etc. On the sides you have little trays with compartments in them for holding random bit and you also have holders for your spray bottles or maybe a 12oz can of Mountain Dew. The stool requires some assembly to attach the wheels. The wheels are 3" locking casters which easily roll over any seams or cracks in your concrete.