Mars® micro carbon 250 is STAEDTLER's refill lead for fine-line mechanical pencils. This is the 0.3 mm lead in the HB degree. The lead is formulated to stay stable under writing pressure and resist breaking at the sleeve, which is where thin leads usually fail, and it lays down a consistent line for a long and smooth writing experience. The tube carries ISO colour coding so the line width can be identified at a glance. Fits STAEDTLER mechanical pencils including the Mars micro 775, Elite 970 and Riptide 984.

• Mechanical pencil leads for fine-line mechanical pencils
• Stable and break resistant
• Formulated for a long, smooth writing experience
• ISO colour coding on the tube identifies the line width