1,The Otto 32 tuning fork is a weighted tuning fork used along the skin to regenerate and stimulate nerve. It also enhances meditation practices.
2,The Otto 48 tuning fork with soothing sound & vibration has calming effect on the body, mind and emotions & stimulates the cranial sacral pulse.
3,The Otto 64 tuning fork is used primarily on the lower back and hips for easing pain and stimulating the parasympathetic nervous system.
4,The Otto 128 tuning fork promotes the release of nitric oxide, a gas in our blood vessels known to relieve joint pain and promotes relaxation and health.
5,The Otto (osteophonic) tuners are placed by the ears and on joints, muscle and nerve groups which in turn resonate throughout the body providing relief from arthritis, knee or back pain, surgery or a strenuous workout.
5, Otto tuning forks have a weight atop each prong.

Notes:
>1.To keep the tuning fork more accurate, please do not tap it with metal.
>2.Please keep the wooden striker dry and away from sunshine before and after use.
>3.Please allow 1cm error due to manual measurement.Pls make sure you do not mind before you purchase.

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