Review (5/5): Perfect fit for hotel dryers.
I ordered this looking for a diffuser that would work on hotel hairdryers (Hilton Hotels, at least). I was unclear from the reviews whether it would fit, but it was a perfect fit for the dryer at my hotel - the problem was that the dryer itself wasn't strong enough. I replaced the diffuser that came with my hairdryer with this one because I love how it shapes my curls; it fits well on my standard dryer, too. It's easy to pack, great for travel and a good value. I highly recommend!
Update: I bought a second one of these to store in my suitcase so I stop forgetting it on trips. It's become the one I use daily at home.