What it is : A universal attachment that affixes to any* blow-dryer barrel and easily combs through even the densest of curly hair without a snag. What it does : An easy-to-use styling tool that will help you combine steps within the blowout process and allow you to get the smooth, blown-out style youu2019re looking for. *Barrel diameter must be between 42-52mm 6 1/2 x 2 1/2 x 2 1/2