Pendulums have been used for ages for divination and determining the answers to any question which rational mind cannot perceive. This is accomplished by allowing the body, through a process known as 'muscle testing' to determine the outcome.
Simply ask a question which you know the answer to and determine which circular or up and down motion is yes or no. Then ask your question
These pendlums are composed of naturally colored ( rose,citrine,smoky,amethyst) or clear quartz