Hot Water Bottle. The classic blue rubber water bottle. The Hot Water Bottle is a hospital grade rubber bottle designed to keep water warm.Use the bottle to relax with as a bed warmer on a chilly night or use it to heat feet during the day. Quickly soothe sore muscles, arthritic pain, cramps, toothaches, stress, and other pains easily with heat therapy. Fill this bottle up with cold water and crushed ice, and it becomes a cold water bottle. Treat yourself whether you need to feel warmth or coldness. Order it today at Jambo Shoppe and have it delivered to your doorstep.