The hot water bottle has a large capacity to provide enough warmth for your back, abdomen or legs. The wide mouth design makes it easy to fill with hot water and prevents water from overflowing, allowing you to use it safely all day long The thickened inner liner can lock in heat for a long time; it can keep you warm without frequent water changes, and it can accompany you to sleep warmly on cold days The detachable fleece cover is ultra-soft coral fleece, which is comfortable against the skin and prevents the skin from directly contacting the hot surface to prevent burns; the jacket is machine washable and easy to clean, and it will not feel cold against the skin in the cold winter, and it will add warmth The detachable fleece cover is ultra-soft coral fleece, which is comfortable against the skin and prevents the skin from directly contacting the hot surface to prevent burns; the jacket is machine washable and easy to clean, and it will not feel cold against the skin in the cold winter, and it will add warmth The hot water bottle is made of high-quality thickened rubber material. Even if it is accidentally dropped, squeezed or deformed, it is not easily damaged and is durable. It is lightweight and portable, making it convenient for traveling and commuting for heating.