Scotch Thermal Laminating Pouches protect items from damage and are for use with thermal laminators. Protects and adds professionalism to business documents. Great for children's artwork, photos, cards, to-do lists, schedules and other frequently used documents. Ultra clear to let important information show through. Ideal for marker-proof, tear-proof and spill-proof paper items that you want to last in the home, office or classroom. Recommended to use with Scotch Thermal Laminators. Letter Size, for items up to 5.27 in. x 7.24 in. 20/pack. 5mil.