The Meinl Sonic Energy planetary-tuned therapy tuning fork is manufactured according to The Cosmic Octave. Each tuning fork is tuned exactly to the frequency of the respective celestial body in order to achieve a therapeutic effect. The therapy tuning fork is larger and heavier than the standard tuning fork, allowign them to swing longer and to be struck less often during a treatment or in the professional therapy area. This tuning fork is made of high-quality nickel-plated steel and has a matte finish.