There was a space about four inches between the cabinet and refrigerator that was to small to use for anything, or so I thought.  Then I saw this wine rack on Wayfair.  We slid the fridge out, attached this wine rack to the side of the cabinet with small bolts and cap nuts, and slid the refrigerator back in place.  Now we see the tops of wine bottles instead of empty space.  It could not be more perfect!