ESSENTIAL HOME REMEDY HOT WATER BOTTLE: Treating sore muscles, stress, migraines, cramps, arthritis, aches and pains, stiff necks, lower back pain, menstrual cramps and tension, can also double up as a cold compress for kids with fever or to reduce swelling for minor injuries, use as an ice pack or hot water bottle. DURABLE & SAFE TO USE HOT PACK: made with thicken PVC material and designed for anti-explosion, rest assured that you will not get burned, odorless thermoplastic material, TUV approved. ANTI-LEAK DESIGN HOT WATER BAG: Wide mouth for easy fill, anti spurt lip to prevent leakage and spills (fill a maximum of up to two-thirds), transparent bottle to accurately know how much water is inside.