This 500ml hot water bottle is made of high-quality rubber for durability. It is a must-have tool to keep warm in winter and can also treat aches, pains, and cramps. The grid texture ensures safer and more comfortable skin contact. Suitable for adults and children (with temperature restrictions). Comes with a detachable and washable fabric cover. Stay cozy with this practical and versatile hot water bottle. Features: 1. Made of high quality rubber materials, it is very durable. This hot water bag is very convenient to operate, you only need to pour hot water into a hot water bottle to use. 2. It is an essential tool and a good helper to keep warm in cold winter, you can give it to your friend and family. 3. Can treat sore muscles, stress or cramps, arthritis, aches and pains, stiff necks, lower back pain, women menstrual cramps and other common aches and can also double up as a cold compress for a person with fever or to reduce swelling for minors injuries. 4. The grid texture makes skin contact safer and more comfortable, can prevent hot the rubber hurt your hands, prevent the hot rubber from being in direct contact with your skin to cause burns. 5. When used by adults, the water temperature must be below 70 degrees, and when used by children, the water temperature must be below 50 degrees, and should be kept slightly away from the body to prevent scalding. Do not use it for infants and those who cannot take care of themselves. Specification: Material: Rubber Product Color: Random Product Size: 19 x 11cm Product Weight: 110g Capacity: 500ml (Actual Water Capacity 350ml) Package Included: 1 x Rubber Hot Water Bottle