One tool, three barrels, exponential styling possibilities. The systems three easily interchangeable barrels make salon-caliber hair achievable at home. Create bohemian beach waves, starlet-inspired spiral curls or full bodied glamour wavesand everything in between. Suitable for all hair types. Includes 1" straight barrel, 1.5" straight barrel, and 1.25-.75 tapered barrel. T3 Whirl Trio features: - Five heat settingsadjustable for any hair type. . - Digital T3 SinglePass technology that measures and adjusts temperature. . - Camera lens-inspired Precision Interlock System that makes changing barrels fast, easy and secure. .