This set of 3 weighted tuning forks in the Solfeggio frequencies are made of aluminium and each comes with a wooden mallet and chakra labelled natural cotton drawstring pouch.  This set includes the 3 missing notes in the sacred frequencies known as the Secret Solfeggio:
 
174 Hz (=3) Relieves both physical and energetic pain, great for removing toxins and EM radiation from the body's cells.
852 Hz (=6) Rejuvenates the mind, body, and energy levels, stimulates the third eye and dissolves energetic blockages, improves well-being and overall health.
963 Hz (=9) Linked to the pineal gland and helps to heal the central nervous system, fosters awakening, oneness and connection, helps one return to its natural state.