What is this product? The amika Triple Barrel Pro Curler Set has 3 interchangeable tourmaline barrels that easily create curls of any size and shape. The curler features tourmaline barrels fused with ceramic. Tourmaline is a natural source of negative ions and far?infrared heat, which provides faster and safer styling. Negative ions eliminate frizz and seals the cuticle to create smooth, shiny hair. Far?infrared heat easily penetrates hair for faster styling with less damage. The different size barrels allow you to create any style ranging from tight baby curls to voluminous beachy waves. Ready to use in seconds. Temperature remains constant curl after curl, allowing you to work quickly while attaining consistent results. The clip?free barrels will not tug or break hair. More info: The 3P Triple Barrel Curler set includes 32 mm, 25mm, and 19mm sized barrels.