Also available in medium, large, and small sizes.
Large Indian Singing Bowl. 716g - 748g, 5.75" diameter. Comes with wooden mallet. Traditionally used in Buddhist meditation, the singing bowls are comprised of 7 metals representing different celestial influences:

Gold = the sun
Silver = the moon
Mercury = Mercury
Copper = Venus
Iron = Mars
Tin = Jupiter
Lead = Saturn

How to play:
Singing bowls are played by hitting, striking, or slowly rubbing/stirring a wooden mallet within the top outer surface of the bowl. The bowl will produce a continuous harmonic sound. Playing the bowls usually causes an immediate centering effect. The tones set up a "frequency following response" that creates a balancing left/right brain synchronization. The actual pitch and exact tonal characteristics to vary from bowl to bowl, each bowl has its own unique voice.