Pendulums are tools used for divination or dowsing. They typically consist of a small weight suspended on a string or chain. The weight can be made of various materials, such as metal, crystal, or wood.

Pendulums can be used for various purposes, such as finding lost objects, finding energy blockages in the chakras, making decisions, or gaining insight into personal issues. However, it's important to note that pendulums are not scientifically proven to be accurate, and their effectiveness may vary from person to person. As with any divination tool, it's essential to use your own judgment and intuition and not rely solely on the pendulum's responses.