Specifications: The cloth of this functional healthy vest contains nano tourmaline, infrared, thermal materials and magnetic fiber cloth. Detailed product: The cloth of this functional healthy vest contains nano tourmaline, infrared, self-heating materials and magnetic fiber cloth. These functional powder can serve permanent magnetic therapy, thermal therapy, negative oin therapy and far-infrared therapy. Under these functions, the local blood circumstance speeds. Pains or fatigue on your neck, shoulder and back will lessen. Suitable for: Benefit for the cervial spondylosis, can release the fatigue and ease pain. Nano tourmaline ceramaic powder release iones (1060per cm3), called longevous elements and air vitamin, helping renew the atmosphere, removal of formaldehyde, benzene, ammonia and other harmful gases. Activate the activity of biological macromolecules, conducive to the restoration and balance of body function; enhance the body resistance to disease. People who is suffering from per arthritis of shoulder.