This crystal chime is made of 99.99% pure quartz crystal and is used for music appreciation. The vibration sound energy of quartz crystal comes from pure quartz, and crystal sound healing and chakra meditation are also based on pure quartz energy. How to play: The operator maintains a calm mood, divides the bowl mouth into three equal parts, taps at these three points, or uses the method of drawing a large satellite to tap 6 times, and then rubs the part of the bowl wall clockwise or counterclockwise. Replenish energy clockwise and release energy counterclockwise. When using multiple bowls, please maintain a distance of 2-30 centimeters to prevent resonance from causing the sound to become hoarse.