Natural pitch Perfect for meditation, relaxation and therapy Pure and attractive crystal material Very long vibration Engraved tuning info Product Description: The Meinl Sonic Energy Natural Pitch Crystal Tuning Fork is crafted from high-purity quartz crystal, offering a rich vibrational resonance ideal for meditation, relaxation, and therapeutic use. It is tuned to 432 Hz, often called "natural pitch" due to its resonance with nature and the human body. Many believe this frequency promotes a deeper sense of relaxation and harmony. Each Natural Pitch Crystal Tuning Fork comes with a protective bag and a mallet for activation.