Visit our FULL SITE to order Print or eTextbooks Have you ever been sketching and wanted to cover a larger area quickly? Or wanted to just variegate the tone very subtly similar to using a watercolour? Well, Derivan Liquid Pencil is capable of all these things and more. It's a truly revolutionary way to create sketches. Derivan Liquid Pencil is available in Permanent and Rewettable formulas in six subtle graphite shades - Yellow, Red, Blue. Sepia, Grey 3 and Grey 9 in 40ml jars.