I used a fridge monkey for years to hold bottled water.  It did the job but sometimes the bottles would not stay stacked. I have this on the top shelf of my refrigerator.  Holds at least 9 bottles -- could probably hold more if I added a third layer. Just reach in and pick up a bottle.  No toppling of bottles; no restacking needed.  If only it would also lug the packages of bottled water home too!