Crystal Singing Bowls are 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 Rich Vibrational Resonance with the power to Healthing. Each bowl is carefully inspected to ensure precision tuning and quality. Brand New Crystal Singing Bowl. FREE: Case, Play Mallet and O-Ring.