... / size300ml – 2000mlFeature1, First grade natural rubber hot water bottle,2, Resistant to boiling water; 3, 100% leak proof4, Seamless moldedRubber ... for heating and hot compress.2. Products can meet environmental requirements.3. The products after 100%pressure leak detection test.The hot water ... bag is made of by Natural Rubber material, also can with kinds of cover, it is very useful for ...