... #, invoice, etc.. Carbonless book:also called as carbonless note book, carbonless invoice book, carbonless message book, carbonless order book, etc..Environment-friendly material&Ink ... of all kinds of printing products,for example: Book, Catalogue, Brochures, Book. Magazines, Leaflet, Poster, Flyer,Booklet, etc.. ... welcome, size optional, good quality Carbonless Message Book (Post It Note Inside)