The answer is simple; you use a curling iron when you want sleeker, shinier, more polished waves/curls.
QUICK + EFFICIENTTitanium barrel with temperature sensing rapid heat technology outperforms ceramic, delivering fast, even heat, for more consistent curls and longer lasting stylesSHINE ONNegative ions lock in moisture, enhance shine, and eliminate frizzSMOOTH OPERATORSuper smooth barrel, with ergonomic thumb grip and heat resistant tip, minimizes friction on the hair and eliminates creasingTO EACH THEIR OWNDigital display + 4 temperature pre-sets (up to 425F) allows you to customize the temperature based on your hair type and textureSTRESS LESSAutomatic shut-off after 30 minutes of non-use, built-in safety stand, and 9 ft swivel cord" Kristin Ess Hair Soft Waves 1 1/4 Inch Curling Iron.POLISHED CURLS + UNDONE WAVESBend the ends for a more polished look, or slide the curling iron straight through your ends for a more undone, relaxed look.