It uses alcohol-based CoversAll™ ink with synthetic bitumen

Natural beige/brown colored high quality acid-free 250 gsm paper

a black and white Posca PC-1MR for outlines and a Uni Pin Fineliner 5 set for details and outlines

adding intricate patterns

talens fine art charcoal sticks 7 8 mm 3 pcs hidden-product It uses alcohol-based CoversAll™ inkCharcoal 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.