Mechanical pencil lead for use on paper and drawing card High break resistance due to flexible lead Smooth-gliding lead, jet black lines Manufacturing process without PVC- more than 90% based on natural raw materials Simple refilling for many Staedtler mechanical pencils such as Mars micro 775 and graphite 779 6 leads per tube (6 leads at 1.3mm line width) ISO colour coding Creativity makes people a little happier. And more relaxed. With its products, STAEDTLER is not only a companion for people of all ages who want to bring their own creative ideas to life, but also a life-long source of inspiration. With a broad spectrum of high-quality, innovative, German-made creative products, STAEDTLER fosters the development of individual personalities - and has done for more than 180 years.