Soothing Pain ReliefProviding comfortable relief from sore, aching muscles, arthritis pain and more, the hot water bottle holds up to 500 ml 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. DesignThe front and rear pockets are designed to keep warm hands in the front pockets, and the back pockets for a hot water bottle. The screw cap is sealed to enhance the airtightness, and it will not leak when squeezed and shaken. Easy to UseAllow 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. Tips: please pour hot water below 80 to prevent scalding MultifunctionThe luxurious fur hood helps keep out hot water and stays effective for 35 hours at room temperature. Throw it under your comforter to ward off the chilly night air, or use it as a heat pack under your clothing for backache relief; easy to fill due to its extrawide mouth, you can also use it as a cold compress by inserting ice or filling it halfway with water and freezing. Safe to UseMade of reliable rubber material, our fur hot water bottle has passed 24 hours explosion proof and leakproof tests before leaving the factory in accordance with the safety standards; can effectively isolate hot water and maintain effectiveness for 3 to 5 hours.