Instruction: Generate an answer to the question by utilizing the information contained in the document.

Input:
Question: Can you confirm that american plugs fit these adapters? Some reviewers say otherwise.
Document: Like other recent reviewers, I received a set of adapters that does not accept American plugs. They look totally different than what is pictured. And at just 6 days before my trip, I hope I can find the correct adapters soon, or I will be out of luck. Will be returning these.
These are not American to European adapters. They are three prong European to two prong European adapters instead. Otherwise would have been an excellent purchase :-(.
I ordered these adapters for a Study Abroad in Germany. American plugs flat out don't fit in them. The holes are spaced too far apart so that American plugs can't even be inserted. Don't waste your money.
They fit in the euro socket snugly and don't pull out when you unplug your us/canada plugs. All the sockets I was shipped worked fine, what else is there to say.
I bought these because other reviewers said they had a snugger fit than the less bulky plug converters. I am traveling in Italy and have found that the prongs on these converters DO NOT fit into most of the electrical outlets I encountered. The prongs are too big. Stick with a simpler converter. If your devices have 3-pronged plugs, just bring a 3-prong to 2-prong converter with you and plug that into the simpler type of plug converter with smaller prongs.
So far these work well and seem to be well-made. The downside is that the fit around the American plug is quite tight and requires some pushing and tugging to get it in and out and the adapters are quite large and won't fit in every outlet cover
WARNING:  These do NOT fit American plugs, the outlets are too small and your American devices will not plug into these - do not waste you time as I did. This is the reason why i only purchase online from Amazon - so easy to return!
very useful for any of my American plugs that didn't quite fit right in those universal plugs, or if I wanted to plug it directly into a European outlet. Cheap price, quality product. Very useful for my time in Egypt.
These do not fit American plugs. I'm not sure what it is but I feel like an idiot for not reading the other reviews. I'm going to return it, big waste of my time. I wonder when Amazon will drop this vendor.
These adapters work fine for standard two prong and three prong American style plugs, but do not work for two prong plugs with a neutral prong...I.E. the ones with the wider base on one of the plugs.
Answer: American plugs without polarized prongs fit.  If you have a plug where one prong is wider and flanges it will not fit in this adapter.