Derwent Lightfast Colour Pencil - Mars Violet

Derwent Lightfast pencils are oil-based, smooth, creamy and very lightfast. They feature a new design of core that is resistant to prolonged colour change, ensuring your artwork will not fade for up to 100 years under museum conditions. The thick core gives a dense colour application which brings vibrancy to any drawing. All colours comply with international lightfast testing standard, ASTM D-6901. pdf=CC_ derwent_lightfast.pdfDerwent Lightfast Colour Chart.