Singing bowl - Chakra Bowls Set of 7 nesting bowls with chakra colors and design. Wood mallet included for each bowl Size: 6-10" Diameter. \Material: Aluminum Color: 7 Colors Singing bowls have been used for centuries in religious and spiritual practices for meditation, relaxation, spiritual well-being and to promote healing. It is believed that the sound and vibration that you create with a singing bowl spreads peace on earth.