These crystal clear Mylar Envelopes are heat sealed on two adjacent sides like an L, and open on the two other sides. This makes insertion and removal of contents safe and easy.
Constructed of uncoated heavyweight 4 mil polyester with two adjacent sides sealed to form an L shaped enclosure. 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 refer to capacity of envelope, they are approximately 3/8" longer in each dimension. Custom sizes are available, please inquire.