4 x 5" Photo'L' Sleeves 4 mil ARCHIVAL POLYESTER 4-1/4 x 5-1/8" (outside dimensions)
These L-Seal Envelopes are made from crystal-clear archival Polyester, approved by the Library of Congress. Their rigidity (4 mil) and unique construction (two adjacent sealed sides) allows for quick/safe insertion and removal of photos/prints.