Materialsceramic quantity1 5 1 voltage110 220 plug typeau plug uk plug eu plug us plug typestraighteners length measurement27 temperature170 230 hair typenormal usage conditionwet dry hair caresmoothing straightening heat range6 10 speed setting6 finger restpermanent handlestraight tensionothers hrc0 platingothers lengthcm1 5cm wattage w29 featuresquiet temperature control lightweight power light indicator nanotechnology