Click n Curl comes with a detachable handle that turns brush heads into rollers, allowing each section of hair to cool and set while you continue styling. Heat is what alters the molecular bonds in your hair and permits a temporary change in shape (straight to curled), but it is the cooling of the hair that allows the new shape (the curl) to be retained. After drying a section of hair with your blow dryer, simply detach the Click n Curl brush barrel and allow your hair to cool while you attach the handle to the next brush barrel and move on to the next section of hair. Read more