FLEXIBILITY: Simply use the size roller for the type of curl you are looking for that lasts for days EASY: Prepare to steam: 1.) Fill unit to the water level 2.) Unit will steam within 1 minute 3.) Attach desired roller 4.) Then roll steamed roller into section hair COMPACT: Storage is minimized with small design and can be taken anywhere with automatic dual voltage ALL HAIR TYPES: Great for Hair Extensions and Wigs (natural and synthetic)