I am leaving this review in case someone else is on the search for a small circumference around the base of the wheels/legs rolling stool to fit under a small width piece of furniture.  I needed this to fit under a piece of furniture in my office that is 24" width.  Most rolling stools I have seen have a very wide wheel/leg circumference.  This fits perfectly and is easy to roll around my office between my desk and where I sit to do patient intakes.  There are no locks on the wheels. It was easy to put together.  I am not sure about the quality of the foam cushion of the seat just yet and how long it will last and for now it fits my needs.