Lending modern aesthetics to an ancient Tibetan meditation aid, the Sela Crystal Singing Bowl is made from pure crystal and has been given a raw, frosted finish to promote a clear and long-lasting melodic tone. This singing bowl comes with a silicon ring and a wooden mallet with a rubber head. Place the bowl on the ring to ensure it's able to resonate freely before tapping the sides with your fingers or the mallet, or run the mallet around the rim to produce a clear and defined note. This model is tuned at 440 hertz to match the A concert pitch, making it easy to combine with other instruments.