From the Crayola Project line, Metallic Outline Markers have a unique lay-down that display 2 colours with one stroke. When applied to poster & foam board the ink naturally separates and creates a beautiful outlining detail. Add special shimmery effects to art projects, crafts, and homework assignments. This set includes 4 Metallic Outline Markers great for both light and dark surfaces featuring black, green, blue, and pink outlines.