Nitram charcoal is a supberb high quality charcoal that does not crumble easily, a wide range of tones can be created ranging from rich blacks to lighter more subtle shades.
Nitram H makes lighter and mid tones easier to attain and easiest to sharpen to a point
Nitram HB is a medium soft charcoal and the most popular option for creating a variety of tone and detail
Nitram B is ideal for those wanting rich blacks in their artwork, very soft but able to carry a point