The Comforth Curler is equipped with a curling timer, which starts when the hair is completely wrapped around the cylinder. After 8 seconds the Curler beeps and the curl is complete and you can gently pull the device away from your hair so that the strand slides out of the curling chamber with a nice curl. If your hair is very thick, it may be necessary to hold the Curler for a few seconds longer after the beep to completely finish the curl.