Dr-ion Negative Ion Reversible Performance/Power Necklace (Red/White/Grey) (S (17.3 in. or 44 cm long), Red/White/Grey) by Dr-ion

Negative ions are called vitamins of the air because they provide health benefits people are not aware of., Improve strength, even for athletes (golfers, footballers, baseball players, basketball players and etc)., Improve sleep quality, help prevent or reduce snoring, improve insomnia and help have a sound sleep., Reduce pains, aches and numbness, restore body energy and make you feel refreshed., Improve flexibility and help reduce stiffness.