A specially-fired ceramic with rare earths; acts as a dielectric superconductor strengthening beneficial earth energy. Looks like a Greek worry bead but its special firing makes it great for energy-sensitive people as well. The cord enables you to carry it on a keychain or place it in your pocket for easy retrieval. Cleans and neutralizes harmful and negative energies in the environment. For electro-magnetic fields: computers, tvs, telephones, fluorescent lights. Slightly yin (cool) in energy.