The innovative Mermade Thermal Brush is a heated round brush that provides instant volume, shine and bounce. The advanced infrared light beam adds shine, reduces frizz and locks in moisture. The flexible, tangle-free bristles glide through the hair and shape it without tangling. The innovative bristle-free zones allow more heat to penetrate the hair's hydrogen bonds, creating more curl and shape than other thermal brushes.Infrared light beam - smooths the hair and locks in moisture through direct contact with the hair, ensuring healthier and more effective styling32 mm hair drum - creates voluminous curls and bouncy, well-defined hairstylesCeramic barrel - High-quality ionic ceramic barrel seals the hair cuticle, moisturizes, eliminates frizz and adds shineSynthetic bristles - Uniquely arranged bristles ensure more heat reaches the hair to create more curl and shapeBristle-free zones - Allows heat to penetrate the hair's hydrogen bonds for more curl and shapeErgonomic and easy to use -