Open ceramic barrel designed with anti-tangle technology 2-way rotation with 3 rotation settings to curl left, curl right or alternate 3 heat settings range from 350 to 430 degrees Fahrenheit to accommodate all hair types 3 timer settings to achieve a variety of looks from beachy waves to tight striking curls Safety guard for burn-free styling The InStyler Auto Curl is for household use only. The device has a polarized plug (one blade is wider than the other). As a safety feature, this plug will only fit in a polarized outlet one way. If the plug does not fully fit in the outlet, reverse the plug. If it still does not fit, contact a qualified electrician for help. DO NOT attempt to defeat this safety measure.