These ONE OF A KIND Black Tourmaline Grounding Stone pendants come with a 70cm or 30" gold or silver link chain with a lobster clasp and 7cm or 2 3/4" extender to adjust the length to your liking. Black Tourmaline is best known as a Grounding Stone. According to Ancient Indian tradition, It is believed to awaken the Root Chakra, one of the 7 Chakras or Energies that are present in the body. The Root chakra is the first chakra and is located at the base of the spine. It is the root of your being and establishes the deepest connections with your physical body, your environment, and the Earth.