Measure the broken spring and pick the correct size. Unplug the iron and remove the stand by pulling one side down and under. This will cause the stand to release. Do not overbend the stand. There are two small screws on the sides which need to be removed with a screwdriver. Some curling irons may have retaining pins that also need to be removed. Once this is done, the tensioner handle will fall off the iron. Loosen the screw holder and remove the broken spring. Slip the replacement new spring under the clip and squeeze the two wires together for easy fitting. Tighten the screw and re-attach the handle to the barrel. Screw back the side screws and retaining pins. Re-attach the stand finally.