Get more volume, silky curls, lush waves and 24 hour curl control even in humidity. The 1" nano ceramic curling iron offers superior performance and frizz control. Get beautiful, shiny curls with our Nano Tourmaline Ceramic Curling Iron. The technology fuses micro particles of tourmaline ceramic and silver to emit natural frizz-reducing ions for long-lasting curls and waves. Even with ultra-high heat levels up to 400°F, the far-infrared technology generates hair-friendly heat that's gentle on hair, retains moisture and enhances shine.