Protect and preserve posters, maps, precious artwork and more. Lamination protects from spills and wear and tear. It also enhances the document’s color, making the item more brilliant and eye-catching in the classroom. Warning label on film allows user to see when film is running out. Two rolls per box make it easier to move and store. Packed in sturdy box and polybagged for longer storage life. Feeding card in every box instructs user on how to change the film. 25" x 250', 3 mil. Case of 2 rolls.