STAEDTLER Mars Micro Carbon refills are extra strong mechanical pencil refills. This STAEDTLER refill pen is very easy to use.

Key features include:

• Non-permanent lines: Can be easily wiped off many smooth surfaces, such as plastic, metal, lacquer, and leather.
• Wide, prominent lines: The tip is perfect for creating bold lines.
• Durable and flexible: The pin is designed for longevity.
• Environmentally conscious: Made without PVC or plasticisers.
• Compatibility: Refill fits most mechanical pencils.
• Pen width: 0.9 mm.
• Hardness grade: HB.