Check the listing for details. Biosonics 128 Hz Otto Tuning Fork (Weighted). Condition: New. Listed at 89.95 USD. This listing comes with the 128 Hz Otto Tuning Fork, velvet carrying pouch and instructional pamphlet.Use the Otto tuning forks directly on the body to stimulate your nerves and to aid in the release of tension from the body. Let them resonate deep within your bones with deep Earth tones, bringing peace and relaxation.Place these forks on the rib heads, thorasic vertebra, sternum and illiums, using the low tones and extended resonance to stimulate and promote healing and balance between the systems of your body. Add this Otto tuning fork to your spiritual toolkit today and find deep calm within. (Video Demonstration)✯✯✯✯✯ Domestic shipping is always free! THIS EXCLUDES HAWAII, ALASKA, & PUERTO RICO. International (non-domestic) shipping is NOT free. Please contact us so we may calculate your shipping costs. eBay store powered by Shopping Feed.