Singing bowls are a type of bell, specifically classified as a standing bell. Rather than hanging inverted or attached to a handle, standing bells sit with the bottom surface resting. The sides and rim of singing bowls vibrate to produce sound. Singing bowls were traditionally used throughout Asia and the tradition of making sound with bronze bowls could go back 3,000 years to the bronze age. Today they are employed worldwide both within and without spiritual traditions, for meditation, music, relaxation, personal well-being and religious practice. Singing bowls are used in health care by psychotherapists, massage therapists, recovery, stress and meditation specialists.