Material: 1)Tourmaline 2)Nano functional ceramic powder 3)Thermal Materials 4)10pcs permanent magnets/ 1 set Applicable For: People with Hyperosteogeny, Arthritis, Pain on Carf Muscle and Thigh Muscle. Cautions: 1)People with Acute soft tissue injury, please use after 24 Hours 2)It is forbidden to be weared by people Equipped with a steel body, cardiac pacemakers and artificial limbs(fitted with electromechanical) 3)It is forbidden to be weared by Pregnant woman and Baby . 4)Clean in Water no exceed 40 degrees, no washing with detergent or bleach.