Blue hot water bottle for warming moments. It's common to feel chilly quickly in bed or on the sofa. A hot water bottle is the best remedy for cold sheets and icy feet. Physical discomforts such as neck, back, and stomach pains can also be alleviated with this rubber hot water bottle. The large blue hot water bottle comes without a cover. It holds up to 2 liters and can be used by both children and adults. The material is odorless, and the closure is secure. For cooling, simply fill the bottle with cold water. Safety instructions: Do not fill with boiling water, as there is a risk of burns. Children should only use the hot water bottle under adult supervision.