CHI 44 Ceramic Barrel. No hot or cold spots. 1 1/2". Reflects the heat back to the hair, cutting down the drying time. Dries the hair from the inside out up to 50% faster. Maintains a more even temperature. Utilizes Far Infrared/Negative Ions. Non slip handle makes styling easy. Evenly cut 100% natural pure boar stands up to many years of daily use. Bristles help eliminate all fly-away hair. Boar gives full control of the hair from the roots to the en.