Hair Straightener Brush, Hastar Ceramic Negative Ion Straightening Comb, 20s Fast Heating Electric Hot Hair Brush, Styling Tools for Women, Anti-Scald & Auto-Off, Create Frizz-Free Smooth HairHastar Hair Straightener Brush Negative Ion Straightening Comb Styling Tool • Anti-scald teeth on the edges are made of heat-resistant nylon to protect you from all angles. • Emits 20 millions of negative ions to protect hair from static electricity and keep hair shiny and healthy. • Brush automatically shuts off if not used for 60 minutes to always ensure maximum safety and optimal performance. • Advanced metal-ceramic heating technology can make hair evenly heated, easily turn curly hair into straight hair in just a few minutes. Professional Hair Care Hastar straightening brush is adjustable for various types of hair, with up to 6 different temperatures, no matter what kind of hair you have: wavy hair, curly hair, or even frizz hair, you could smooth your hair without worry. It releases negative ions that can quickly penetrate the hair to help lock in moisture, nourish damaged hair, reduce frizz and static, and make hair smoother and shinier.