For safe use and to obtain the maximum life of this hot water bottle, you should observe the following instructions. When filling this hot water bottle do not use boiling water and fill to a maximum of two-thirds capacity or less. Do not overfill as this might cause the bottle to burst. Hold the bottle by the neck in an upright position and fill slowly to avoid hot water splashing back. Expel air from the bottle by lowering it carefully onto a flat surface until water appears at the opening. Screw the stopper sufficiently tight to ensure that there is no leakage. Finger-tight should be adequate. Finally, make sure the funnel is empty. If there is a possibility that prolonged contact with the skin could occur, an adequate cover should be used to prevent burns. Under no circumstances should the hot water bottle be used as a cushion and be sat on. Do not fill using the water from a domestic hot water system as this can considerably shorten the life of the hot water bottle.Prevent contact with hot surfaces. Prevent contact with oil or grease. When not in use drain completely and keep with the stopper removed in a cool, dry, dark place. Prevent exposure to sunlight.Do not place anything on top of the bottle during storage. Check the bottle and stopper for wear and damage prior to use. After filling, check the bottle for leaks before use.Stop using immediately at the first signs of wear, damage or perishing. Using the bottle every day for prolonged periods of time can shorten its lifespan. Only use the stopper provided with this bottle, using another stopper could potentially compromise the bottle’s integrity. Even when using the bottle with a cover you should take precautions not to have direct prolonged contact with the same area of skin.Store out of reach of children. Small parts represent a choking hazard.For children, only use under adult supervision and with cooler water.