Works but not many position options for a larger person
I use this a lot to help get between dr appointments.  However, the book shows many different positions for working on your back that are not doable because it does not fit around my rib cage as well as it does on the small woman in the instructions.  Works well in any case to work out knots in my upper back area.  Gets a little sore if used too long at one sitting so am thinking about putting a tennis ball on the end of it.
Rating: 4 stars