This semi-precious stone pendulum has a sterling silver chain and is approximately 7 inches long. Clear quartz is a power stone. Helps for concentration, increases inspiration and creativity. Purifies the spiritual, mental, and physical plans, bringing an aura of protection. The Merkaba balances and revives the activities between the two sides of our brain . The Merkaba also helps in our spiritual growth and the connection to the higher self. A very good pendulum for medical dowsing. Sensitive stone with a little crystal ball at one end.