[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 that deeply resonates throughout your body, helping your physical, emotional, and spiritual well-being [128Hz Tuning Fork]Otto tuner (weighted) for hearing tests, neurological exams, pain relief 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 tuner (weighted) for meditation and relaxation. Place next to the ear or on joints, muscles and nerve groups to relax 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 DNA. Our genetic building blocks increase energy flow and strengthen your nervous, immune and circulatory systems, which are beneficial for balancing and regulating the chakras in the body. [4096Hz Tuning Fork]4096C Otto Tuner/Crystal Tuner/Angel Tuner/Biofield Tuner/Biofield Tuner is very high profile and helps to open your mind and increase acceptance rate. By vibrating your skull or placing it next to your ear, the Angel Tuner opens doors for spiritual insights 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 products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.