I received these yesterday and am returning them today.  Unless you wear size extra narrow and want to stretch it out to narrow, save your money.  Before I put it in the shoe, I turned the different adjustors to see how they worked and how much they worked.  The width?  What a joke.  When it was fully spread open, it was just a hair wider than when it was closed. In the "fully open" position they slid right into my shoes with room to spare - no way possible for them to do any stretching.  They are worthless and going back. Darn