At 13 7/16" x 19 1/4" our B1319PC protective closure bag holds 13 x 19 inch art and photography. This bag allows for double mats with backing or single mats with foam boards up to 5/16 inch thick. The protective closure feature is designed to prevent the adhesive from coming into contact with your product. The adhesive strip is placed on the body of the bag so you can easily slide your photos and artwork in and out of the bag. 1.6 mil BOPP material won't easily wrinkle, tear, or fog.