Printfile Universal Format 6 X 7 CM 100 Pack - Printfile 1204UB100

I use print file for all my negative storage. These are wider than your standard binder but perfect for 6x7 negs. I sometimes cut these pages down to normal binder width for storing 6x9 negs

Perfect for archival storage of 6x7 film negatives and transparencies.

Useful for storing old negatives

This one is not cheap. But it works very well for both 6x4.5 and 6x7 frames. I prefer this one to the 6x4.5 specific ones. Always leave a little room, so the negatives won't get dirty.

Nice for the negatives. One trick that I always have to remind myself is to slide the negs in on a flat surface, which makes it a lot easier to avoid snagging.

This is simply a must have if you're shooting and archiving film.I've been using these guys for over 15 years.