hair dryer diffuser has a professional air outlet, fits most hair dryers, dries hair quickly and softly, just clip it to the nozzle end and you can convert your dryer into a variety of styling tools, perfect for permed or naturally wavy hair. You will find it not only prevent heat loss but also effectively prevents the hair from being damaged by concentrated heat, blow away the frizz, saving your time for styling. it will give you incredible results. blow dryers diffuser is flexible enough to cater for the needs of most dryers, the dryer diffuser's inner diameter is 6cm/2.36in, pls ensure your dryer is compatible for this size before buying. This universal diffuser curl adopts special hand shape design, large drying area and looks beautiful. lovely but practical, hair will get dry more quickly. TPR pad is set outside, it's anti-slip and can help you easily insert the blow dryer. Works well for all hair types like natural curly hair and straight hair.