Expo Neon markers can be used on both black and white dry erase surfaces and are visible from a distance. The ink is ideal for use in both the classroom or the kitchen. Colors include 1 each of pink, orange, and yellow, green, and blue. Details: Includes assorted neon colors Includes 5 markersBullet tip Non-toxic Conforms to ASTM D-4263 standards For ages 8 and up