This tiny but powerful magnetic clasp converter allows you to easily transform your necklaces and bracelets with a difficult clasp to an effortless magnetic clasp. Simply attach the spring ring on the converter to the jump ring on the end of your necklace. It is easiest to open the magnetic clasp by sliding sideways instead of apart. Very hot water (over 150 degrees F) will diminish the strength of the magnets, so detach before cleaning in ultrasonic cleaners. USA Made.