These Carbon Film A4 Typing Smudge Resistant Sheets come in a pack of 10 and are used for duplicating typed work. These A4 Carbon Film sheets, also known as carbon paper, can be placed between two sheets of paper and when pressure is applied from a typewriter hammer, duplicate anything typed on the above sheet to the piece of paper below. They are smudge resistant. These Carbon Film A4 Typing Sheets are ideal for office workers, administrators, students and at home as they allow users to produce two duplicate copies of anything typed on a typewriter. . 297x210mm