These crayons are different than any crayon you may have experienced. The 6 neon colors have a vibrant glow-like quality on most surfaces and can enhance any of your child's masterpieces. Great on textured surfaces like wood, watercolor paper, and canvas and glides effortlessly on smooth surfaces like paper and chipboard. Crayons are easy to blend and smudge. They have a glowing effect when used with a black light. The chunky size is perfect for small hands. May stain clothing and some surfaces. Please protect your work area.