This is a quality product but I was missed-led by the advertisement.  The advertisement says "adjustable" and its not.  It is spring loaded to fit snuggly into your shoe size.  That is why you ask for shoe size and that should have tipped me off as not what I was really looking for.  I wanted to adjust the snuggness of shoe tree in the shoe.  I would suggest that those who order this shoe tree is to order a size smaller than your actual shoe size.