Pencil numbers are then used to indicate the degree of softness ? the higher the number the softer the lead and the blacker the mark. For example, a 2B lead is softer than a B lead and will produce a blacker mark. A 4B lead is softer than a 2B etc.
HB pencils are most commonly used for writing, and are a staple in schools for exams and penmanship. Some people prefer writing with a 2B pencil as it has a darker lead for writing and calligraphy.
The marlin graphite pencils 2B come in packs of 12 and packs of 4?s.