[Tuning Fork Set]The therapeutic adjustment fork is machined from aluminum alloy, precisely tuned to within 0.5% of the specified frequency, and has a clear, long-lasting tone deeply resonates throughout your body, helping your , emotional, and spiritual -being [128Hz Tuning Fork] (weighted) for hearing tests, neurological exams, and relaxation. Used in bones, joint muscles, nerves, body parts, resonance, stimulates the nervous system and releases nitric oxide, reduces inflammation, muscle spasms and blood circulation. Hold to your ears for deep relaxation and peace [136.1Hz Tuning Fork]Ohm (weighted) for meditation and relaxation. Place to the ear or on joints, muscles and groups to the body, release stress and prevent disease. Use on knees and feet. [528Hz Tuning Fork]MI 528 is a better solfeggio frequency biofield tuning, which has a very relaxing effect on the mind and body. 528Hz is used to repair damaged . genetic building blocks increase energy and strengthen your nervous, immune and circulatory , which are beneficial for balancing and regulating the chakras in the body. [4096Hz Tuning Fork]4096C /Crystal /Angel /Biofield /Biofield is very high profile and helps to open your mind and increase acceptance rate. By vibrating your or placing it to your ear, the Angel opens doors for spiritual and experiences, also for space and crystal clearing Color: silver Material: aluminum alloy Package Contents: 2 x mallet (random colors and styles Do not accept designation) 4 x tuning forks Only the above package content, other are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.