Premium Material: Our hot water bottle is made of high quality PVC which is leakproof and durable. It can be kept warm outside for about 3 hours, and can be kept indoors or in bed for 4-8 hours. The soft and elegant cover distribute the heat evenly and protect you against excessive heating.Easy to Use: This hot water bag with wide mouth is easy to fill, and the anti spurt lip prevent water spitting back out like those old rubber ones. Strong screw cap ensures no water leakage after tightening. Cute cover is super soft and stretchy, easy to remove or put on.Multi Functional: Hot water bag can be used as hot or cold compress for relieving muscle aches and pains, relieving menstrual cramps, sports injuries, etc. Perfect for setting on an aching tummy, on sore backs or any other part of your body that needs comfort or relief.Great Gift Choice: The 2 litre hot water bottle is the perfect gift for family and friends in this winter, just hug it to help relieve anxiety and provide comfort. What could be more comfortable than snuggling up with this high quality, smooth hot water bottle on a chilly night?PLEASE NOTE: Fill only to two-thirds capacity maximum, and is not suitable for Microwave oven heating. Because of the natural rubber material, there may be some odor, please understand.