Derwent Artists Pencils Set of 24 Derwent Watercolour pencils combine the control of a pencil with the beauty of watercolour. Simply mix with water to allow the pencil marks to transform into stunning watercolour effects. Tin contains 24 watercolour pencils. The colours in the pack are: Lemon Cadmium, Deep Cadmium, Orange Chrome, Deep Vermilion, Rose Pink, Crimson Lake, Imperial Purple, Light Violet, Spectrum Blue, Prussian Blue, Kingfisher Blue, Mineral Green, Emerald Green, Grass Green, May Green, Olive Green, Brown Ocher, Golden Brown, Copper Beech, Terracotta, Ivory Black, Blue Grey, Gunmetal and Chinese White.