1. Multifunctional hot water bottle - thickened and warm, 2mm thickened PVC, effectively slows down temperature loss, makes the heat last longer, can also be used as an ice pack or cold water bottle. It is also a good Mother's Day gift for mom. 2. Easy to use - Wide mouth is easy to fill, large thread technology, smooth rotation, the screw is well closed. It can only be filled up to two-thirds of its capacity. 3. Helpful helper - The classic design of this classic thermos. Treats muscle pain, pressure or cramps, arthritis, aches and pains, stiff neck, lower back pain, menstrual pain and other common pains, and also works as a cold compress for those with fever or to reduce swelling from minor injuries. 4. Non-slip texture - The heart-shaped texture design promotes even heat dissipation, comfortable and not hot. The bottle should be replaced after two years of use. And check the cork regularly for wear and damage.