The Sacred Solfeggio Tuning Forks are an ancient set of healing tones that bestow: Multiple Blessings, bring healing light into your aura, feel divine and lift you up on all levels. The 6 pieces tuning fork set contains the following 6 Sacred Solfeggio Tones that are encoded in the Bible: UT – 396 Hz – For liberating guilt and fear RE – 417 Hz – For Facilitating Change & Support MI – 528 Hz – Transformation, Miracles, DNA Repair FA – 639 Hz – For Connecting & Relationships SOL – 741Hz – For Awakening Intuition LA – 852 Hz – For Returning to Spirit The 9 Piece solfeggio tones contain the above 6 solfeggio tones plus three additional forks that complete this ancient sacred tonal pattern. 174 Hz 285 Hz 963 Hz The solfeggio tones are Not found in our musical system, enjoy them with the Sacred Solfeggio Tuning Forks.