cannot be beat for the price [SEP] my hair dryer did not come with a diffuser and i did not want to spend a ton of money on something that would not be used often this diffuser is decent quality for the money spent it fit well onto my dryer but did not have much room to spare i really had to jam it on but once in place it did not budge i feel that it diffused well enough for what i needed but i was not super impressed with the performance if i were going to be diffusing on a regular basis i would spring for a much nicer product for something that will just be used once in a while i am fine with not getting the best results possible