* Mars micro carbon fine leads 250. * Fine leads for use on paper and tracing paper. * High break resistance due to flexibility. * Smooth lead, deep black lines. * Unique eco-friendly manufacturing process without PVC or softening agents. * Includes more than 90% natural raw materials. * Suitable for all mechanical pencils. * Easy refill of 12 leads at a time for most Staedtler mechanical pencils. * ISO color coding.
| Colour | Grey |
| Line width (mm) | 0,5 |