This is an exclusively Tibetan Buddhist praying instrument which always bears the mystical word ''OM MANI PADME HUM'' [Om the Jewel in the Lotus Hum] numbering six syllables in the mantra of Avalokitesvara. The syllables are carved outside the wheel as well as kept inside the wheel printed in the paper in numerous numbers. It is generally made of a cylindrical body of repouss metal, penetrated along its axis by a wooden or metal handle. The cylinder can turn around the handle, with a slight rotation of the wrist, thanks to a cord or ballasted chain, which keeps it in movement. Inside this cylinder, written on paper or skin, are esoteric texts, usually invocations (dharani or mantra), the most common being that of Avalokitesvara.