1-inch curling iron barrel for long-lasting silky, defined curls with 24-hour curl control, even in bumiditynNano technology eliminates hot spots and reduces static and frizz for healthy-looking hair with Extra-smooth tourmaline ceramic surface for superior performancenNatural ions for maximum shinen400°F highest heat setting for long-lasting curls and waves with uniform heat recovery system maintaining ultra-high heat levels; 30-second heat upn5 precision LED heat settingsnConair combines the powerful properties of tourmaline technology with the benefits of ceramic and ultra high heat levels to deliver a professional curling iron. Frizz is eliminated and hair's natural luster is protected. Tourmaline Ceramic Technology effectively helps to protect hair against damage.