Stainless Steel Magnetic Necklace. This high quality crafted magnetic necklace has 10000 gauss neodymium, north magnets on every link and is approximately 18″ long & 1/4″ wide with a clasp closure. We recommend that all jewelry be treated as you would any costume jewelry of good quality. Do not bath with or wear the bracelet in the shower, pool or spas. Each magnet is bonded to the bracelets and chemicals can break the bond.