Gel FX Markers Classpack® Create cool effects on black or colored paper! Intense, washable colors also ´pop´ on acetate, aluminum foil, glossy paper, poster board, wrapping paper, windows, Crayola® Model Magic®, and more! Gel Markers are made of recycled plastic and solar energy - a good subject for science class as well as art lessons. They´re also non-toxic and washable, making them safe for children and practical for teachers. FREE inside: Lesson plan booklet, 5 extra marker caps, and 2 OverWriters™ markers. 10 each of the following: white, pink, red, yellow, green, blue, and black. 80 count.