Hot Tools Big Bumper 1 1/2" Professional Spring Hair Curling Iron with multi-heat control reaches temperatures up to 428oF. It features the Pulse Technology for fast heat up - maintains constant, even heat, from low to extra-hot, while you are styling your hair. Hot Tools Hair Curling Iron is ideal for all types of hair. It has super heavy-duty round cord with improved swivel for longer life, fewer kinks and tangles.