Developed to ease arthritis, inflamed joints, strained ligaments & tendons. Our magnetic knee & elbow wrap uses the highest quality in neodymium magnets. The strength of Norstar magnets will offer deep penetrating relief & maximize the healing ability throughout the area. In combining Norstar magnets with Stomatex fabric, our wrap offers lightweight support that will adjust to your body's requirements. The magnets are uniquely built into a movable pad system which lets you position the pads over areas of most concern. Manufacturer power rating: 12, 300 gauss core/1, 200 gauss surface