Staedtler Black Eraser has a high quality design for dust-free erasing making it ideal for using during tests and exams. It can easily remove graphite markings from paper and film with little crumbling or discolouration on the paper. It has an elastomer construction for minimal crumbling. The eraser won't cause discolouration on paper. It's Phthalate and latex-free for added peace of mind. The sliding sleeve allows for easy handling.