Pencil Grade: HB Lead Diameter: 0.5mm Mechanical pencil lead for use on paper and drawing card High break resistance due to flexible lead Smooth-gliding lead, jet black lines Unique ecological manufacturing process without PVC or softening agents More than 90% natural raw materials Suitable for use with all mechanical pencils Simple '12-a-go' refilling for many STAEDTLER mechanical pencils ISO colour coding 12 leads per tube and 12 tubes per pack
