In sound healing, larger diameter bowls will have a lower fundamental tone. The advantage to smaller diameter bowls is their portability in a treatment setting, and in our experience, even the smaller crystal bowls produce an abundance of sound for most applications. Practitioners find sounding a bowl is a lovely way to begin and end a treatment, and to lift and disperse stagnant energy. Enjoy a resonant and a healing wash of sound with bowls tuned to the ancient and healing vibration of Ohm.