About this item Safe Material The inner bottle of the hot water bottle is made of environmentally friendly and durable natural rubber material, safe, tasteless and non-toxic. thickened material, effectively extend the heating time. Screw-proof cap design ensures no water leakage. shell is made of soft and comfortable artificial fur, skin-friendly and soft, removable, easy to clean and maintain. Shark design, cute and funny, suitable for adults and children. Easy to use:Simply open the lid and pour two-thirds of 80 degree water into the rubber hot water bag. Finally, just tighten the lid and turn the warm water bag upside down to check for leaks. The foot hot water bottle has passed the pressure resistance and leak-proof test and is safe for daily use by pregnant women and children. Note: Do not fill the hot water bottles with more than 80 degrees and two thirds of water. Multi-use The large hot water bottle can be used for hot and cold therapy. The feet hot water bottle can be used not only to keep warm but also to relieve pain such as muscle aches, arthritis, menstrual cramps, cold hands and feet and pain in the knees, neck, waist and back. It can also be used as a cold compress for fever sufferers, to reduce fever and cool down, or to reduce swelling for minor injuries. Ideal for use at work, while reading, sleeping or taking a lunch break. Perfect Winter GiftThe warm hot water bag is perfect for the cold winter days, it is the most practical gift for your family, friends. Perfect for Christmas, Thanksgiving, Valentine's Day, birthdays, anniversaries and other holiday gifts. This will be the perfect gift to express endless love. Will give your family, friends an unforgettable surprise. color: blue Package Quantity: 1 hot water bottle with shark lid Size: 37*31cm