Crystal clear Mylar Envelopes heat sealed on three sides to form the highest quality crystal clear envelope for archival storage and presentation.
Constructed of uncoated 4 mil polyester with three heat welded sides. The heavyweight 4 mil film provides a stiffer product so that the envelope has a greater rigidity and lies flatter thus providing a less distorted view of the enclosed item.
Sizes to refer to capacity of envelope, they are approximately 3/8" longer in each dimension and open on the short side. Photograph above is shown with a 2 ply mat board added for presentation.
Special sizes and alternate openings are available, please inquire for prices.