Hi, I've tried reading threads, Googling and staring at pictures; but, my old eyes can't seem to figure out what is meant by these terms. I think 'shared prongs', which I think I understand, are involved - but, where does the 'airline' come in? Thanks for any help you can offer!
No ideas?
Hey @TARSHA
Hope this clarifies a few things!
Single shared prong.
Double shared prong.
A medium airline. The room between the girdle and the inner metal of the halo.
Not a tight airline. Some people go for that look and they rock it!