<p>Caran d'Ache Luminance 6910 Color Pencils are the most lightfast and permanent colored pencils ever made. With solid leads and a wide range of colors created from highly concentrated pigments, they have been made to the highest professional standards. The velvet finish of these pencils has come from two years of technical research which also developed the richness of the shades and allows for overlaying, mixing, and gradation.</p><p>Each pencil consists of a 3.8mm diameter lead with an intense pigment concentration and a creamy texture, stored in an 8-ply round casing bearing the color number, the color of the lead and the name of the color. 80 of the 100 colors in the Luminance range achieved the highest award (Lightfastness I) under the ASTM D-6901 standard. Every shade has been formulated using finely ground pigments chosen for their purity, intensity, and resistance to UV light.</p><p>This set comes in a smart cardboard container and contains the complete range of Luminance colors.</p>