Simple Tibetan Buddhist "Om" key chain made of bone and metal ring Length is about 6-7 inches long knotted on a strong cotton thread Om plate Disc bead is about 1.15" and metal ring is about 1inch. Materials are from Nepal and carefully hand knotted in US. Om is an very important and powerful mantra recite specially during meditation and yoga. The Om symbol represents the sound Om， or the vibration of the universal divine and harmony among all things. In saying Om， everything is encompassed independent of time. Om is the essence of all that is sacred. One of the most powerful and widely used mantras in Hindu and Buddhist traditions， Om is chanted at the beginning of meditation， prayer and yoga among others.