Use the ISO spinning 25mm Curling iron on dry hair only. Prep your hair using a heat setting spray to help your curls hold. Adjustable temperature control: 175-450°F. Barrel Rotates left and right automatically with a push of a button Wrap your hair tighter for smaller/tighter curls, or looser for loose waves/curls Let your curls cool down completely before combing or styling (they’ll stay longer)