Lightfastness: high across all 84 shades

Inking compatibility: Accepts drawing ink

which means the eraser itself doesn't show grey graphite smudging the way a white block does after repeated use

and it is filled with a permanent lacquer ink that comes in 8 different colours

and shorthand sketching

talens fine art charcoal sticks 7 8 mm 3 pcs FOFS Lightfastness: high across all 84Charcoal sticks that meet a professional standard. Produces very solid black lines. The sticks are round and made from specially selected willow sticks. They are approximatelly 7 8 mm thick and 13 cm long. These charcoal sticks are delivered with a practical plastic tube that can be used for storing them.