Liter Hot Water Bottle: Hot water bottles can be used for hot and cold therapy. Hot compress can relieve back pain, menstrual cramps, neck and shoulder pain, joint pain and pregnancy period. Cold/ice water bottle for sprains or cold compress for fever or cooling, and it will keep you cool during hot summers. Unique Design: Extra long strip water bottle (73*14cm) can hold 2 liters capacity to help cover all areas of the body. Insulates the whole body, promotes blood circulation, etc. Feel the warmth set in as the cold dissipates. ONLY fill up to 2/3 capacity of water at most, long-lasting thermal insulation. Quality Guarantee: The hot water bottle is made of environmentally friendly natural rubber, explosion-proof stitching and foldable, non-toxic and odorless. Grid structure non-slip design makes skin contact safer and more comfortable. The soft fleece cover is made of polyester, soft and comfortable, washable. Easy to Use: The spill-free lip and leak-proof design with wide opening for easy filling and emptying. With the soft and fluffy cover, avoid direct contact with your skin to cause burns. Tighten the stopper and turn the hot water bottle upside down to check for leaks. BUT DO NOT add boiling water directly!