WHAT IT IS A selection of multi-sized rollers that feature halo induction technology for rapid heat up in the included carousel. WHAT IT DOES Ceramic infused rollers create additional shine moisture and overall improved condition of hair. These rollers heat evenly for less damage and create all-day curls with high volume. Perfect for medium fine and coarse hair types. Halo Roller System Includes 1 - Halo By CHI Induction Carousel Heater 12 - Induction Rollers in 3 different sizes 12 - Clips 1 - CHI Volume Booster - 8.5 oz. Benefits Unique temperature setting option for fine medium and coarse hair Rapid heat up time and consistent roller temperature for up to 15 minutes Color dot indicates when optimum temperature is reached Creates maximum volume and long lasting curls Negative ions and far infrared technology dramatically improve condition shine and moisture of hair Heating carousel automatically feeds rollers for convenience 1 year limited warranty WHAT ELSE YOU NEED TO KNOW CHI Halo Induction Rollers work with all hair types especially medium to long length hair.