Review (1/5): doesn't fit my standard size Conair hair dryer.
I have a Conair Ionic hair dryer. Pretty standard brand and pretty standard size. The outside of the nozzle on the hair dryer is a little more than 2.25 inches. The inside of the nozzle on this diffuser attachment is about 2 and 1/16 inches. No way will the rubber on the diffuser stretch to fit around the outside of my hair dryer nozzle. I don't understand why other people can attach theirs so easily. It's going back.