This Review Title is Not Compatible with Black Orchid Diffusser and the content is: The whole reason I bought this was because it says compatible with black orchid.  Yes, I can get it on there, but not easily and it does not stay.  My Babyliss Pro Portofino & the black orchid diffuser are each heavy items.  This soft silicone does not hold onto either of these items well. It just came off every time I tried.  I like this diffuser a lot, however I'm going to have to buy the one that specifically fits my new Portofino hair dryer.  If this sillicone happens to fit or has more to hang on too it might work for you.  I found it way more trouble than it is worth..There are other information for this review, one is This reviewer did purchase it and the other is 0 people think this review is helpful.