I got these sunglasses for my daughter for Christmas.  She really likes them.  They didn't come with a string, though.  I may have ordered something different?  I don't know.  I don't remember a string even being in the picture, but anyway, these are the glasses I ordered.  THey're nice and they fit her.  She won't wear them all the time, but if the sun is really bright, she does ask for them.  We live in Texas, so they're useful even in Winter.  They are sold for 3 to 10 year olds, but she's 2.5 and they work for her.  They're sturdy, too and have good coverage unlike the Disney princess sunglasses... and they're orange, NOT PINK!  How cool is that?!  I appreciate the sunglasses.