Superior, 100% lightfast pencils won’t fade for up to 100 years. Your artwork will stand the test of time without fading for up to 100 years when you use Derwent Lightfast Pencils. Achieve the rich colors you desire in an oil-based pencil that has a creamy texture. Derwent Lightfast pencils are formulated to be 100% lightfast, meaning that the core is resistant to color change and will not change for up to 100 years under museum conditions. All colors comply with internationally recognized lightfast testing standard ASTM D6901 as well as Blue Wool Scale ISO 105. Revolutionary oil-based core creates a buttery, velvety texture allowing complete integration of colors. Mix with a paint brush directly on paper or canvas surface to create a paint-like effect. Strong point for detailed drawing and layering techniques. Dark colors will sit over lighter shades for effective outlining and defining negative spaces. Ideal for use on colored papers as well due to their opacity. Derwent Lightfast offers the broadest color spectrum 100% lightfast pencils and are the only oil-based lightfast pencil range. Pencil set includes 100 colors.