Derwent Inktense Watercolour Pencils: Set of 24 permanent water-soluble premium quality highly blendable artist pencils with 4mm round barrel and firm texture; also suitable for painting on fabric An innovative formulation that acts like ink, delivering intensely vibrant colours that dry permanently and do not wash out, for exceptional layering Advanced performance with specially formulated active colour technology; Richly coloured pigments intensify when activated with water; Light washes dry permanently Perfect For Artists: Also experiment with quilting, crafting, fashion design, card making and colouring-in; soft core, with firm texture; best used with Derwent waterbrushes and Inktense paper Contents: 1 x Set of 24 Derwent Inktense Professional Watercolour Pencils in a reusable tin, round barrels fit standard pencil sharpeners