Koh-I-Noor has a wide range of chalk, charcoal and graphite blocks all in combination sets, or as individual colours, with varying degrees of softness.
Koh-I-Noor 4869 iiii Drawing Chalks - 5.6mm - Assorted Colours (Pack of 6)
Top-quality drawing chalks including a range of traditional colours, ideal for sketching and fine art.