We love these Zen Vibrapoint bowls.
They work just like a tuning fork, but have a much greater vibration and volume of sound. You hold the bowl by the handle, with the end of the handle pressed into the skin, and then ring the bowl. The vibration penetrates deeply into the tissue, allowing for a great ability to release tension. Further, the bowls tone just like a normal metal bowl, so you receive the benefits of listening to multi layers harmonics, as well as feeling the deep vibration of a metal bowl within. This is an excellent tool for any practitioner.