For Medium to Thick Hair: The Classic hair iron features 1-½ inch wide plates that are perfect for those with medium to thick hair that is shoulder length or longer. We have other irons for different hair types to get the best volume for your type of hair. Lasting Volume: The Voloom irons are designed specifically to give you lasting hair volume, so you can extend the amount of time between shampoos and colorings. With fewer colorings and shampoos, your hair will start to become even healthier! Patented Plate Technology: Ceramic plates paired with a patented checkerboard design work on the under layers of your hair to create a hidden volumizing structure or “volume pockets” that lift the top layers up and away from the scalp, creating a fuller, more Voloominous look! Adjustable Temperature: Adjustable temperature settings from 220°F to 395°F allows you to experiment and find out what temperature works best for your hair type, and helps to prevent unwanted damage to your hair. Pro Tips: Remember, VOLOOM is used in the underlayers of the hair covered by an untreated top layer. Everyone's hair is unique! Start with a low heat setting and clamp VOLOOM on an underlayer for only a second or two. If you want more volume, raise heat in small increments until you find the temperature that gives you your perfect volume. The most common mistake is clamping too long. For that full glam look, start near the root and clamp and release down to about ear level. New in box!