Washable. Nontoxic. Dark colors! Light colors! With Crayola Heads 'n Tails Markers, kids can double their creativity with double the colors! Each marker has two shades of each color, giving kids more choices for more colorful creations! World's Most Washable: Crayola washable markers are formulated to easily wash from skin and most children's clothing. Red: Candies/Apple; Orange: Sweet/Marmalade; Yellow: Tangy/Lemonade; Green: Slimy/Alien; Blue: Clear/Sky; Purple: Wild/Violet; Pink: Stunning/Sunset; Black: Thick/Shadows. ACMI - Arts & Creative Materials Institute Certified. Conforms to ASTM D 4236. Meets performance standard ANSI Z356.5.