There's one thing we all have in common, "WE ALL BUY ICE!"When you're camping, hunting, fishing, tailgating, transporting groceries or just a family BBQ at home. Maintaining the proper temperatures will improve the overall performance of your cooler. Keep them in your freezer at home, your RV refrigerator/freezer when traveling. Save money on ice, food, fuel and electricity with KoolerGel® The Ice Extender or Patented Kooler Kube®.