Create cool effects on black, dark, and white paper! Crayola Washable Gel Markers are specially formulated to make bright and vibrant colors on dark backgrounds. You can also use them on glossy paper, poster boards, wrapping paper, and more! Crayola Washable Gel Markers are non-toxic and wash easily from skin and most children’s clothing. Each box contains eight markers. Colors are gray, purple, sky blue, green, yellow, magenta, pink, and white.