【Safe Material】The hot water bottle is made of natural rubber, contains no toxic substances, is safe, environmentally friendly, and recyclable. It can be used cold or hot, can be used as an ice pack or a hot water bottle. 【Large Capacity】The hot water bottle holds 2 liters of hot water, and the large capacity can provide warmth to the back, stomach, waist, or shoulders. The included plush cover has good thermal insulation properties and keeps the heat constant. 【Leak-proof Design】The screw cap design of the hot water bottle can prevent leakage and reduce the risk of scalding from hot water, making it safer to use hot water for heating during the cold winter. 【Soft Pocket】The hot water bottle has a plush cover that is soft and comfortable. Avoid direct contact with the hot rubber bag, avoid skin burns, and provide a comfortable feeling when heating. There are two openings at the top and bottom to put your hands in to keep them warm. 【Multiple Uses】The hot water bottle can warm hands, legs, neck, waist, stomach, and back, relieve cold or pain. Suitable for most people. It can also be given as an exquisite gift to friends, family, or children, so they can spend a warm winter.