Therapeutic tuning fork for work with sound waves and bone. Recent research indicates that low sound frequency enhances bone density in animals and humans. The results show that frequencies which lie between 25-150 hz have been instrumental in healing muscles, bones, tendons, and ligaments, and helpful in relieving pain. In fact, researchers found that application of vibrational frequencies in this range helped to relieve pain in over 80 % of the participants with both acute and chronic pain. Ohm Therapeutics includes three Ohm frequencies within this range: the Mid Ohm, the Low Ohm, and the Osteo Ohm. An exciting part of this research comes from studying the vibration of purring cats. Dr. Clinton Rubin researched and discovered that frequencies between 25 — 50 hz can increase bone density by as much as 20 %. Package includes Osteo Ohm Tuning Fork, chart opens to 2 panels of photos and detailed instructions for use. Made in the USA from space grade aluminum, Ohm Therapeutics Tuning Forks are fully guaranteed to stay in tune.