Project Life Page protectors from American Crafts are made to last as long as your memories. These ultra clear plastic pocket pages are designed to coordinate with all Project Life albums, core kits, and other accessories (all sold separately). This package includes ten 8" x 8" page protectors.
This is just right for what I wanted. I use these to store my stencils above 6x6 but smaller than 12x12. The material is quite sturdy and I can punch extra holes without difficulty (unlike some others) to fit in various size folders.
Please make a note that these protectors only fit 2 D ring albums as I own a few with 3 D rings and the holes do not correspond. Such a shame! The size also slightly differs as I had to cut down on some of my completed projects to fit these.