A 1200 gauss samarium cobalt magnet is in each of the scratch-resistant tungsten carbide links. Magnets have been used in different cultures over the years by those who believe magnets worn on the body promote good health. The theory is that magnet therapy may be beneficial by affecting the circulatory system, the blood flow in the body. Increased circulation is beneficial because the body gets more of the nutrients it needs from the blood. Important: Copper wristbands and magnetic products are considered to be unproven remedies. Do not use magnetic products during pregnancy, or if you have an electrical implant such as a pacemaker. Consult with your doctor if you have any questions and continue with regular medical care.