Caran d'Ache 100 Luminance 6901 Coloured Pencils Set Artists ProfessionalDescriptionSpecificationsShipping Following the launch of 24 new Luminance 6901 colours, Caran dAche now proposes all 100 colours in a complete assortment, including 8 shades unique to the Caran dAche colour chart. Luminance 6901 is the colour pencil which combines the best possible lightfastness with the smoothness of a permanent lead made with wax. In accordance with the international ASTM D 6901 standard (which certifies the lightfastness of