C-Line - CLI60727 For classrooms and conference rooms are not yet equipped with electronic visuals, transparency film is a great tool to use to provide visuals in place of slideshow presentations. Easily create crystal-clear overhead transparencies. For instant overheads, use this transparency film in plain paper copiers. Simply use the film in place of paper in the paper tray or the hand-feed feature of your copier. Film can be used with desktop or high-speed copiers using dry toner.