Tourmaline ceramic barrel provides high, even heat and maximum hair-conditioning ions for shiny, healthier-looking hair. High heat, constant heat sensors monitor temperature, quickly restoring heat to the perfect styling level.Bouncy, shiny, frizz-free curls. 30-second heat-up ready light flashes when optimum heat is achieved. 30 heat settings for curling and styling all hair types. Worldwide dual voltage. Auto shut-off. "On" indicator light. Extra-long cool tip. Safety stand. With silicone storage cover.Hair type heat level - Heat level 1-6 - fine, thin hair. Heat level 7-14 - wavy to medium hair. Heat level 15-22 - thick hair. Heat level 23-30 - coarse, hard-to-style hair. Dimensions - 5" L x 14.9" W x 2.3" H.