POLYESTER (Mylar) Sleeve 18-1/2 x 24-1/2". 4 mil. NO flap. Art/Photos/Maps. Indefinite Storage.

Legacy

Extra large and totally clear--perfect to use as protection for matted prints displayed in a print rack. Yes, they are tricky when trying to insert mat board into a "pre-creased" envelope, but with a bit of care they do an excellent job. Will buy again and again.