The Touche 3 _ inch larger thermo rounder features the largest Touche aluminum barrel. This aluminum barrel will heat up when used with a blow dryer or other styling tool, making it easy for stylists to add flips, curls and volume during the styling process. All of the round brushes in the Spornette Touche collection feature a foam handle for added comfort. WARNING: Aluminum barrels get very hot, very quickly, when used with a styling tool such as a hair dryer. Do not touch the barrel to your face, scalp or hand when using as it can easily burn you or the person whose hair you are working on.