Tibetan singing bowls produce a beautiful, complex tone, full of harmonics and overtones, when struck or rubbed with a stick. Many people find them very helpful for meditation, and some practitioners use them for sound healing.
These bowls are traditionally struck to produce a complex and beautiful sound aiding meditation, or are filled with water, rice or flowers as offerings to the deities. When circled with a playing stick, singing bowls "hum" in a voice full of wonderful harmonics and overtones. They are made from a mixture of 5-7 metals, hand-turned on a lathe, then hammered to the desired hardness and pitch. Legend has it that as the bowl is made, mantras (prayers) are recited and absorbed into the metals, to be released when the bowl is played. With playing stick.