Copper, owns the same cluster with gold and color, is antimicrobial and doesn't harm the skin in any way. At the same time, copper's soft essence make jewelry is easy to be shaped in different style and difficult to be broken off.
How to choose necklace with right style and size?
The size of necklace depends on different people's conditions. For example, if you have a heavy neck, bigger size is better. If you have thin neck, smaller size is better. And necklace you choose should be matched with your clothes style and color.