Includes two, 2L hot/cold water bottles each with a knit cover. Providing comfortable relief from sore, aching muscles, arthritis pain and more, the hot water bottle holds up to 2 Litter of hot or cold water for soothing, natural pain relief. When used for heat therapy, the flexible bottle contours to the body for targeted relief of stiffness in the neck, lower back pain, knee, shoulder, ankle, menstrual cramps and more. Best warm choice for winter travel, camping, hiking or other outdoor activities, protect your hands or other exposed skin from frostbite. Comes with a knitted hot water bag cover to prevent direct skin contact with hot water bag to cause burns.

Easy To Use- Allow boiling water to cool slightly before pouring. Grab the neck of hot water bottle. Fill in water slowly up to 2/3 full. Press the residual air out slowly and tighten on the screw cap. Make sure there are no leaks before using. Shipped with a soft removable knit cover to help insulate the hot water and maintain effectiveness for 6-8 hours. Grid texture makes skin contact safer and more comfortable. The hot water bottle rubber should be replaced after two years of use. And check stopper for wear and tear damage at regular intervals. CAUTION: The hot water bottle rubber is not suitable for Microwave oven heating.