The express ion unclipped 3-in-1 curling iron provides endless styling possibilities. Three interchangeable ceramic barrels help you to create loose waves, natural-looking curls and ringlets. The Paul Mitchell Pro Tools Express Ion Unclipped 3-in-1 Curling Iron provides endless styling possibilities. The Express Ion Unclipped 3-in-1 features the latest in hairstyling technology with a clamp-free design that allows hair to get straight to the heat and a digital display. Three interchangeable ceramic barrels help you to create loose waves, natural-looking curls and ringlets.