Royal Sovereign Heat Sealed, Letter Size, 3mil Gloss film, 200 pack. These laminating pouches are of the highest quality and will provide excellent preservation and enhancement of all document sizes along with Photos and Memories. Crystal clear, clarity, no hazing, no curling. Compatible with most Pouch Laminators. We also offer thermal laminating pouches, self sealing laminating pouches, FOTO Flex laminating pouches, and laminating pouch carriers.