Faber-Castell super-polymer leads are resistant to breakage and provide a very pleasant writing or drawing experience!
- Contains: 12 leads
- Line width: 0.3 mm
- Degree of hardness*: HB (Hard Bold)
*What exactly is the degree of hardness?
To better understand the degree of hardness, you must first know that a lead is composed of graphite (which provides coloring) and clay (which gives solidity).
The mixing ratio of these two materials will determine the degree of hardness of the lead. The greater the amount of clay, the harder the mine will be. Hard leads offer a lot of accuracy and durability, but lack blackness. They can also dig into the paper if pressed too hard. Soft leads provide good blackness, but wear out quickly. They are sometimes difficult to erase.
The letters on the packets symbolize the category of lead it belongs to:
HB: Hard Bold
Numbers, ranging from 2 to 9, offer an indication of the degree of hardness of the lead. For example, a 9H lead is very hard and a 9B lead is very oily and soft.
HB leads are the most commonly used.
Faber-Castell is one of the largest manufacturers of writing instruments and office accessories. He is also one of the oldest — it was created in Stein, near Nuremberg, in 1761, by the carpenter Kaspar Faber, his wife Maria and his son Anton Wilhelm.
At that time, the company was called A.W. Faber Company and it was only in 1900, when the granddaughter of Johann Lothar Freiherr von Faber (the great-grandson of Kaspar Faber), married a count of Castell, that the company was renamed Faber-Castell.