The beurer hk44 heat pad is the modern hot water bottle unlike traditional water filled hot water bottles the heat pad delivers consistent and controllable warmth throughout the entire duration of use its safe to use as it reaches your temperature selection quickly and remains at that temperature up to 90 minutes with auto switch off so no more of the too hot then too cold with a hot water bottle the material is wonderfully soft and snuggly breathable and skin friendly the fabrics us