Gradient Color Quartz Crystal Singing BowlMaterial: AAA+ Quartz Crystal (are made from a quartz crystal that was crushed and heated at very high temperatures) Size: 8inch Package: 1* Bowl+1*Ball stick+1*Rubber band Singing Bowl The crystal singing bowl is made from 100% pure crystal, the highest quality reaches an international advanced level. Each crystal singing bowl will be inspected strictly before dispatch. The sound is amazing, clear, strong and deep, and rich vibration resonates with