Koh-i-noor 6B graphite stick pencil

Koh-i-noor Woodless Pencils - or Graphite Sticks - have been long-term favourites amongst many artists for their convenience and versatility.

A solid 10.3mm stick of graphite with just a thin layer of paper wrap to facilitate handling.
Sharpen like a normal woodcase pencil for detail work, or use the edges or blunt points for shading or broad, expressive work.