Polyester 'L' Sleeves.
Use for Original Art/Prints & Posters.
13-1/4 x 19-1/4". 4 mil POLYESTER.
Sealed on two adjacent sides.

13 x 19 Original Art/ Print & Poster L-Sleeves
13-1/4 x 19-1/4"
4 mil Polyester (Mylar)
These sleeves have two adjacent sealed sides.

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) allow for quick/safe insertion and removal of photos/prints when not in permanent storage.