CARAN D'ACHE Luminance 6901 40-color colored pencils, unopened. Contents: CARAN D'ACHE Luminance 6901 40 colors Condition: Unopened. Caran d'Ache developed the permanent (oil-based) Luminance 6901 colored pencils, which can meet the demands of professionals, after two years of research. Luminance 6901 colored pencils have a soft texture and high-quality pigments, allowing for clear colors even when layered. This product is highly recommended for artists, designers, stylists, art directors, jewelry designers, and others who place importance on color tones. They have a soft drawing feel, good color retention, are fade-resistant, and maintain the colors of the drawing for a long time.