#Necklace #Accessories #NaturalStone New item. This is a Terahertz tornado bangle, said to be good for health. It's a jet-black piece of jewelry. A shining Terahertz bangle! It's a convenient free size! Although it's black, as you can see, it shines brilliantly, like a black diamond. Also, although it's black, it's a piece of jewelry that's never dull. And it's healthy! A wonderful piece of jewelry.