flexible plastic gives you greater success for a fit
I tried several heel guards and didn't have much luck.  For two pairs of heels (with different size heels) finding a guard proved to be challenging.  What worked with these is that they are made out of a flexible plastic so you have a little give.  The other heels guards were hard plastic so you either got an exact fit or you were out of luck.  I used 2 of the 3 sizes.
Rating: 5 stars