Negative Ion Jewellry and Heating MatsMore negative ions than a rain forest. Will emit negative ions for 100 years. Emits 1250 parts/cc of air. Made of 6 special minerals ( ie tourmaline, germanium, zeolite, porphyry, serpantine and ceramic). Available as bracelet, necklace and earrings. These products also produce deep penetrating far infra-red heat when warmed up. Amazing for acute and chronic medical conditions from arthritis, lack of good sleep, obesity, stress, acidic blod, etc,etc