Cute Sea Green Sandals

Cute Sea Green Sandals My daughter bought these to wear with a dress she wore to a wedding then she never wore them again… There is absolutely NO size anywhere on them…I measured the sandal from the highest point to the heel and it measured approx 9-1/4”. My daughter wore a 5.5 at the time so I am guessing that is what these are but I am not guaranteeing it…