The 432HZ 7-12 Inch Set of 7 Pcs Frosted Quartz Crystal Singing Bowls comes with 2 Pcs Carrying Case bag and is designed for Sound Healing. These bowls are made of high-quality quartz crystal and produce a pure, soothing sound that is known to have therapeutic benefits. The set includes 7 bowls of varying sizes between 7 and 12 inches in diameter. The frosted finish gives the bowls a beautiful, elegant appearance. The carrying case makes it easy to transport the bowls, making them perfect for use at home, in yoga studios, or for other healing practices.