Ionic technology is perfectly paired with the benefits of pure titanium-plated plates for the smoothest, sleekest styles ever! Natural ions reduce frizz while the stay-cool Ryton housing resists the ultra-high heat for comfortable handling. The ceramic heater produces instant heat, up to 450F, and fast heat recovery for styling efficiency with no damaging hot spots. Only used once and my hair is entirely too thick for the plate width so I bought a wider BabyLiss porcelain ceramic model. I do not have the box. There is zero marks on the plates or anywhere else. Purchased at Ulta.