This Warm Grey Lightfast Pencil from Derwent has been formulated to be 100% lightfast. This new revolutionary core is resistant to prolonged colour change which helps to guard your artwork from fading for up to 100 years under proper museum conditions. So should you make a masterpiece you can rest assured that with a Derwent Lightfast Pencil it will still look as good as the day you made it. Each pencil has a strong point for easier sharpening, making them ideal for detailed and intricate works or defining negative space. Around the core is a casing of round wood with a light lacquer, and the end dipped with the core colour then stamped with \'Made in Britain\'. - Brand: Derwent - Colour: Warm Grey - Especially formulated to be 100% lightfast - Resistant to prolonged colour change - Guards your artwork from fading for up to 100 years in museum conditions