11 x 14" 'L' Sleeves
4 mil ARCHIVAL POLYESTER
11-1/4 x 14-1/4 (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.