Gold plated High Strength magnets for pain. Useful for headaches, shoulder tension, hip, back, knee, ankle, arm. Spot magnets are useful for painful areas in which a wrap cannot be used. Gold Plated Neodymium rare earth disk magnets 3/8" in diameter by 1/8" thick. Set of 6. Permanent Magnetic Energy. Dimple is South pole and smooth side of the magnet is north pole. Use North pole to decrease pain and inflammation. Manufactures rating 12,300 gauss for deep penetration. You can also position a magnet on the inside of a shirt or pants over the area to be treated; then stick another magnet or coin to it from the outside of the fabric, holding it in place. (Always slide magnets apart to separate them.) Sample waterproof tape and instructions included.