Pencil Prussian Blue by Derwent Aquatone
Solid watercolor sticks in pencil format. Amazingly versatile and offers four times more useable material than a wood cased pencil. Solid stick of pure water soluble color can be used wet or dry and can apply broad sweeps of color in seconds. Peel the protective wrapper and apply on its side for even faster lay down. Round 7mm stick of pure color.