Best helper: hot bags can be used for hot and cold therapy. Hot compresses can relieve knee pain, back pain, menstrual cramps, cold hands and feet. Cold compresses can relieve fevers and cool. High quality material: hot water bag is made of high quality PVC material, odorless and non-toxic. BPA-free hot water bottle water bag is recyclable. Compared to the transparent rubber hot water bottles, this is more durable and longer lasting insulation. Unique design: the special pattern design on the surface makes the hot water bottle safer and more comfortable for cramps. The hot water bottle only cover is comfortable and high- quality material, can keep it warm for a longer time. Safe and easy to use: first open the lid, then fill two thirds of the 80 degree warm water into the rubber water bottle. Finally, tighten the lid and turn the hot water bag upside down to check if it is leaking. Product Features: The hot water bottle was done within 24 hours to detect leaks and detect leakage before leaving the factory. In addition, the product can retain heat for an extra long time. Ribbed exterior helps maintain liquid temperature 1.8 litre , suitable for children. Hot water bottle with lid that can be easily cleaned. Fill only two thirds of 80 degrees water. The ribbed outer surface helps maintain the temperature of the liquid. Heat and cold treatments, relieves joint diseases, muscle pain, dysmenorrea and other common pain. It can also be used to reduce swelling and reduce fevering. Package Including Hot Water Bottle