These 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 moneyblister containing 4 graphic pencils h hb 2b and 4b 2 watersoluble graphitone sticks 6b and 8b one sharpener and one eraser extra value pack containing an assortment of derwent products and accessories great introductory productnot suitable for children under the age of