This 136.1 Hz weighted golden color tuning fork is made of high-quality aluminum and comes with a Rubber Activator, velvet pouch. Tuned to the Earth frequency of 136.1 Hz, the Om Tuner (also referred to as mid-om) helps to release strain and stress in the heart. Use it when your energy feels low, you feel a lack of connectedness, unable to focus and concentrate or feel the need to ground. When placed by the ears, on the sternum, the Om Tuner creates a deep resonance that is relaxing and familiar. Use this tuning fork for balance and well-being. Place this tuning fork on joints, muscles, and nerve groups to help relax the body and release stress.