The 3-Day Bender features a patented rotating barrel designed for use by stylists at Drybar shops across the US to deliver smooth, long-lasting curls to thousands of clients every day. Infrared energy seals and smooths the cuticle to reduce flyaways, allowing you to create gorgeous curls and waves faster and more efficiently while avoiding damage. NanoIonic Mineral Technology features a blend of 32 minerals that conduct negative ions which are fused to the barrel of the iron to add shine and decrease frizz with use. It helps set the curl and keeps your look perfectly in place while conditioning.