500 pouches - 10 mil hot laminating pouches 2-1/4" x 3-3/4" with standard 1/8" radius rounded corners and clear gloss finish. High gloss finish makes colors pop. Maximum sheet size recommended for this pouch is 2" x 3-1/2" (or less) to leave standard 1/8" border of clear laminate around all sides of card for a secure sealed edge. -Metric specs = 57mm x 95mm and 250 microns thick per flap. Made of PET polyester plastic and heat activated thermal adhesive on both flaps.