Set of 3 tuning forks with pouch and rubber activator. Along with the Set 13, the OM Tuners have been very popular since 2002, both sets being featured in our Basic & Advanced Tuning Fork Training since that time. Based on the OM frequency of 136.1 Hz, the middle of the 3 forks, both people and animals have a strong affinity to its effect and sound, stronger in the solar plexus region helping support the digestive organs and finding center. They are forks #4, #5 & #6 from the OM Set of 14. If you wish to purchase the other 11 forks to complete that set, look for the option to do so on the products page, Complete your OM Set 14.