This Chakra set includes 7 Meinl Sonic Energy Planetary Tuned tuning forks, one for each chakra, and a protective leather case. The Meinl Sonic Energy Planetary Tuned tuning forks are made in Germany according to the calculations of Hans Cousto (The Cosmic Octave). Each tuning fork is precisely tuned to the frequency of the corresponding celestial body to achieve a therapeutic effect. Chakras: Crown Chakra: Platonic Year (TF-E-PL) Third Eye Chakra: Venus (TF-V) Throat Chakra: Mercury (TF-ME) Heart Chakra: Earth (TF-E) Solar Plexus Chakra: Sun (TF-S) Sacral Chakra: Synodic Moon (TF-M-SY) Root Chakra: Synodic Day (TF-E-SY)