Derwent Charcoal Mixed Media Blister Often used for life studies charcoal is often considered very traditional. But, encase it in wood and suddenly you have something much more contemporary - Derwent Charcoal Pencils! They will give you great control over your drawings but keep all those traditional charcoal effects that you love, with less mess! FeaturesThese mixed media blisters offer the perfect opportunity for anyone to experiment with Derwent artist materials. Each pack contains a combination of Derwent products and useful accessories, making them great value for money.