Derwent Lightfast Colour Pencil (Mid Ultramarine)

Derwent Lightfast pencils are oil-based, smooth and creamy and 100% 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.