Silver Copper D: Our copper bracelets are pure copper and contain 6 super strength magnets. More magnets help to increase the therapeutic power. Copper with strong magnets offer double the therapeutic power. Copper has an anti-inflammatory effect, copper bracelets are frequently used for arthritis, muscle and joint pain. The Silver Copper D bangle contains 6 neodymium magnets, a traditional classic striking design with a polished silver plate.