Has anyone used these? My pages are so chunky that when I do put them in an album I am only able to put 10 or less in each and then the book won't close flat. I don't think these will close flat either because it doesn't look like it has an expanding spine. It seems like there must be metal in the spine and it gets crimped so hold all of the pages.
I know some of you use D-ring binders. Do they really protect the whole 12×12 or does some of it stick out?
What Lisa said. They are made to hold 12 x 12 layouts. I confess to filling mine as much as possible, so they're pretty wide at the mouth (!) but that's the point. I have about 20 or so pages in each album some 2 to a sleeve, some not, depending on the fatness of the pages.