https://creativemarket.com/samuelthomas/1405511-Set-of-38-Charcoal-Brushes

A set of 38 REAL charcoal brushes for Adobe Illustrator. All the brushes have been made with real charcoal pencils.

What you get

• .ai file containing the brushes
• Brush Library

How to use

• Simply open the brush library in illustrator
• Draw using the brush or pen tool
• Select which Charcoal Brush you'd like to use from the Brush window.