Derwent : Lightfast : Colour Pencil : Midnight Blue(70%)

Derwent's Lightfast pencils are oil-based, with a smooth, creamy consistency 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 of these pencils provide a dense colour application, which brings vibrancy to any drawing.�