this review title is: i bought this diffuser so i did not have to take and the content is: i bought this diffuser so i did not have to take my larger device while traveling i thought this might fit onto the hair dryers in hotel rooms but it did not fit any of the hair dryers i have encountered yet including my own.there are other information for this review, one is this reviewer did purchase it and the other is 1 people think this review is helpful.