1 The hot water bag is made of thick rubber material, durable to use, it can endure hot water 80/176H or less, and water should be less than 2/3 of the total capacity. Please do not pour boiling water into it. No microwave. 2 Size 25x15 cm, water capacity is 1L, not too big or too small, suitable for all people including babies, kids, adults, seniors 3 Safe tested, with wide mouth, easy to fill water in, and seal with spiral lid, no leakage at all, very safe to use 4 It also comes with cute cartoon knitting cover, prevent skin burning by avoiding touch the rubber bag directly 5 It provide warmth to your hands, foot, stomach when you feel cold when sitting at home or work at office, or sleep on bed, make your winter becoming warm and nice. Box contain 1xhot water bag Product Description KEEP EVERY MOMENT WARM 2.4mm thicker rubber bottle keeps warm for a long time, through you with every cold day and night, and also safer than rechargeable hand warmers. Anti-slip and anti-scald textured surface ensures maximum safety and good heat transfer. HOT WATER BOTTLE BAG WITH KNITTED COVER Provides ultimate warmth throughtout the night The hot water bag is made of thick rubber material, safe and durable to use, it can endure hot water 80 degrees Celsius /176 Fahrenheit or less. Comes with a soft knitted cover that is soft and comfortable, easy to clean and can prevent burns caused by direct touching of the rubber hot water bottle while slowing heat loss. Effectively increases blood circulation and relieves body aches and pains as well as fatigue, keeping you comfortable and warm on cold days. Quickly Warm Cold Hands or other body parts Relieve Menstrual Pain Reduce Discomfort Due to Cold/FLU Symptoms Reduce Muscle Fatigue Improve Sleep Quality Read more