Made from 99.99% pure crystal, Quartz crystal singing bowl produced by high pure quartz crystal, it is an excellent for meditation and Healing. Beautiful, Clear, Deep, Amazing and Vibrational Resonance with the to Heal. The Chakras are the body's energy centers for processing incoming and outgoing energy. F Heart - Gatekeeper to the higher chakras. This is the point where we take in and send out our love. Research shows: 432Hz is the most relaxing and comfortable frequency. Frequency:432Hz Colour:White Material:quartz Size:203*153mm Package Contents: 1 * Crystal Singing Bowl 1 * Rubber O-ring