What it is: Like a curling iron inside of a brush, Double Pint features a ceramic barrel that heats up during blow drying to help lock in your style.Who it's for: Anyone with short to medium hair who wants volume and straightening, or anyone with medium to long hair who wants waves.What it does: Its vents allow air to flow freely, decreasing drying time, while its ergonomic, lightweight design makes blowouts a breeze.