The thickness of your hair And the way nicely it holds a curl will support determine what heat setting to work with. Some curling irons have very simple settings with three heat options, and even more Innovative tools like the T3 Swap Kit Curl Trio on our listing, have 9 https://allhealthmarket.com/product/health-and-beauty-2/hair-care/hair-care-styling/hair-styling-devices/straightening-curling-irons/hair-straightener-wireless-professional-curler-comb-fast-heating-negative-ion-straightening-curling-brush-styling-tools/