Acid-Free Refill Pages made from polypropylene (unless described otherwise). Most Clear Arrowfile Refills are ideal for all images and remember:-
where you have the need to show something of value behind the print - like a note, autograph, genuine stamp, 1st day cover etc..do not place images back to back
where there is no need then you can place 2 images back to back
Arrowfile refill pages are acid free and PVC free and will not harm your photos.
Memo Title Inserts for refill pages are optional and are sold separately