The MEINL Sonic Energy Planetary Tuned Energy Chimes are created utilizing the calculations of Hans Cousto (The Cosmic Octave) to match the frequencies of the sun moon and planets. This is the Sonic Energy 7-Piece Energy Chime Chakra Set. It offers seven perfect tunings for every chakra including Crown Chakra: Platonic Year (EC-E-PL) Brow Chakra: Venus (EC-V) Throat Chakra: Mercury (EC-ME) Heart Chakra: Earth (EC-E) Solar plexus Chakra: Sun (EC-S). Sacral Chakra: Synodic Moon (EC-M-SY) and Root Chakra: Synodic Day (EC-E-SY). Each chime is tuned to create the celestial body s matching frequency. Each is made with silver-anodized aluminum alloy for an exact frequency. The decorative wooden base is finished with an engraved logo and tuning symbol and each chime comes with a wooden mallet that produces a clear and defined note to easily fill your space (small or large) with soothing sound. This mallet can be conveniently stored on the wood base by tucking it under the chime. These high-quality energy chimes are ideal for therapeutic and meditative purposes but they may also be used in classrooms or as a sound signal. Manufacturer s tip: Use the Planetary Energy Chimes also in combination with the matching Planetary Tuning Forks from MEINL Sonic Energy.