Olivia Garden"s Nano Thermic brushes are brushes with unique bristles designs, they have special wavy heat resistant bristles with soft tips that are gentle on hair and scalp. They heat up faster and retain heat longer which gives you superior and long-lasting hairstyles. The provide anti-bacterial protection which helps keep hair healthier and easier to style. It has extra large vents which allow greater airflow that reduces drying time. And it adds more shine to the hair while eliminating frizz and flyaways.