1、Made of high quality aluminum alloy material. 2、Provides instant deep relaxation, improved mental clarity and brain function. 3、528Hz, tuned to the vibrational properties of our magnificent universe. 4、Strengthen massage, acupressure, dreaming and meditation to balance your nervous system. 5、Integrate left and right brain thinking modes, designed for the perfect balance of instruments. Feature: Made of high quality aluminum alloy material. 528Hz, tuned to the vibrational properties of our magnificent universe. Provides instant deep relaxation, improved mental clarity and brain function. Improve your physical strength and concentration, reduce stress by pulling your body into a central space. Develop and improve your sound capabilities. Strengthen massage, acupressure, dreaming and meditation to balance your nervous system. Integrate left and right brain thinking modes, designed for the perfect balance of instruments. Specification: Material: Aluminum alloy Color: Silver Fork dimension: 10 x 2.5 x 1cm / 3.9 x 1.0 x 0.4in Frequency: 528Hz Package list: 1 x Tuning Fork 1 x Hammer 1 x Bag Note: The actual product color may deviate from the photo due to light. There may be a slight deviation in the measurement of product.