Polyester 'Folder' Sleeves. Photos. 5-1/4 x 4-1/4". 4 mil POLYESTER. Sealed on one long edge. Indefinite Storage.

Photo 'Folder' Sleeve
4 mil ARCHIVAL POLYESTER
5-1/4 x 4-1/4"

Made from crystal-clear archival Polyester (Mylar), approved by the Library of Congress. Their rigidity (4 mil) and one-fold construction allows for quick/safe insertion and removal of photos/prints/postcards.