It's like a curling iron inside your brush Drybar's Double Pint Round Brush features a 2.75" vented ceramic barrel that allows for maximum heat and airflow to lock in volume and curl for long-lasting styles.FeaturesIonic Technology helps reduce frizz and adds shine while stylingBristle design allows for exceptional tension and controlErgonomic, lightweight handle provides greater comfortSoft-touch finish and thumb grip prevent slipping1.75" (50 mm) Inactive Ingredients: Cocos Nucifera (Coconut) Oil, Beeswax, Butyrospermum Parkii (Shea) Butter, Helianthus Annuus (Sunflower) Seed Oil, Lanolin, Ricinus Communis (Castor) Seed Oil, Fragrance, Tocopheryl Acetate. Suggested Use: For curls: use vertically throughout the hair. For volume: use horizontally at the crown. UPC: 000002303488 Weight: 0.5 lbs