The ultimate gift this Christmas. A miniature hot water bottle which can be held in the palm of your hand, smuggled onto a bus, brought out at the top of a hill on a chilly autumn walk, or simply held while working at home and trying to save money on your heating! These are great - I love them, and so do my kids. easily activated whenever you want to get warm and can be reused time and time again. Simply immerse in hot water to recycle.