Staedtler Mars micro carbon lead refill HB

STAEDTLER® Mars® micro carbon Mechanical pencil leads: - 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. - Easy "12-a-go" refilling for Mars micro 775, graphite 760 and graphite 779 05/07. - Up to 7 degrees: 2B, B, HB, F, H, 2H, 3H. - 5 line widths: 0.3 mm, 0.5 mm, 0.7 mm, 0.9 mm and 1.3 mm. - 12 leads per tube (1.3 mm: 6 leads).