The thickness of your hair And the way very well it holds a curl will enable determine what heat setting to use. Some curling irons have uncomplicated settings with three heat selections, and more Innovative tools like the T3 Swap Package Curl Trio on our checklist, have 9 heat selections. https://allhealthmarket.com/product/health-and-beauty-2/hair-care/hair-care-styling/hair-styling-devices/straightening-curling-irons/hair-fluffy-portable-electric-ceramic-hair-curler-fluffy-hair-curler-corn-perm-wet-dry-double-use-hair-styling-tools/