* Complies with ASTM D6901 for Lightfastness * Highest ASTM Approved Lightfast Ratings (I or II) * Excellent Resistance to the Fading Effects of Prolonged Exposure to Light * Artists' Quality Colored Pencils for Every Level of Expertise * High Quality Pigments for a Rich Color Saturation * Soft, Thick Cores Are Designed for a Smooth Color Laydown for Superior Blending and Shading * Thick Cores Resist Breaking