Great art starts with great products. Louis Prang developed child-safe art products that uphold the highest standards of quality in materials and color. These standards are maintained today in a comprehensive line of Prang art products for both children and professionals. Prang Thick Core Colored Pencil Sets feature 3.3mm core colored pencils with smooth cores for vivid, blendable color laydown. These quality colored pencils are manufactured using only the finest materials. Cased in real wood, colored pencils are PMA and AP certified non-toxic and come pre-sharpened and ready-to-use. Millions of teachers, students and consumers see, use, or buy Prang art supplies, art markers, crayons, colored and drawing pencils and much more every day. Be bold, color your world, and discover Prang power.