This is a bracelet made of black onyx (black agate) with gold lettering. The engraved characters are a design of the six-syllable mantra (rokuji shingon) used in Tibetan Buddhism: "Om Mani Padme Hum" represented by one character each. • Stone: Black Onyx → Famous as a stone for warding off evil, protecting against misfortune, and strengthening the will. • Gold lettering: Six-syllable mantra → Has the meaning of warding off disasters and protecting the mind and body, like an amulet. • Uses: It is a prayer bead, bracelet, and amulet accessory.