I waited for my next billing statement before making the next order, LOL!
Turns out, I was wrong about them needing to fit every frame.
This one does not require a mail-in, just like most replacement lens seller, they will just mail the lense to me.
When I first got one of these tri-fold cases with a set of Maui-Jim, I kind of hated them, but have lately come around & kind of like them & for less than Thirteen Dollars, I thought it was a decent buy.