Choose your desired temperature by using the + or - buttons. Set the timer (15s/17s/19s) by pressing the M button and selecting the + or - buttons. Hold the CHI Spin N Curl vertically with backside facing the head. Take a ¾” to 1” section of hair and insert in into the opening of the curl chamber in a 90° angle. Hold down the arrow button in the desired direction to curl the hair. The hair strand will be automatically curled into the chamber. When the hair strand is completely in the chamber, release the button. The rotating will stop. You will hear 4 beeps once the curl is set. Remove the tool gently from the hair.