Unable to get the size attributes to show up on the front end

Hi,
I am trying to add sizes for the rings that I will be selling but I am unable to get the sizes to show up on the front end. I have tried every way possible and still no success. I am attaching photos of how it looks on the front end when I try to add the attributes and use them for the variations.

PLEASE HELP! I need to get this resolved ASAP!