This is a 4 in 1 hot hair brush that curls,straigthen hair, dries hair and it can also be use as a hair brush. It's a hot air brush with negative ions that saturate the hair flow which will help condition your hair and help nourish damage hair, it also helps with hair styling and make your hair shiny and smooth while reducing static. the oval shape keep the hair from tangling and the round edges help add volume to hair. The ergonomic handle is designed for maximum comfort and ease of use during styling.