Staedtler Mars micro carbon lead refill HB

-Mechanical pencil lead for use on paper and drawing card. -Smooth-gliding lead. -Jet black lines. -Highly flexible - extremely break-resistant. -Easy to erase. -ISO colour coding. -Suitable for use with all mechanical pencils. -12 leads per tube (1.3 mm: 6 leads). -Easy "12-a-go" refilling for Mars micro 775, graphite 779 05/07 and graphite 760. -Up to 7 degrees: 2B, B, HB, F, H, 2H, 3H. -Available in 5 line widths: 0.3 mm, 0.5 mm, 0.7 mm, 0.9 mm and 1.3 mm. 12-a-go The neck of the lead tube is simply inserted into the end of the mechanical pencil - all twelve leads can be filled into graphite 760, Mars micro 775 or graphite 779 in one go! Advantages: -No touching of lead. -No dropping of lead. -No breaking of lead. ISO colour coding The identical colour coding of mechanical pencils, mechanical pencil leads and technical pens facilitates recognition of the different line widths. efficient for ecology STAEDTLER® acts ecologically and efficiently at the same time! Efficient and environmentally safe - that's the idea! -More than 90% natural raw materials. -Unique ecological manufacturing process without PVC or softening agents. -High break resistance due to flexible lead. -Simple “12-a-go” refilling for Mars micro, graphite 779 and graphite 760.