Use on windshields, showroom windows, plastic, metal, wood or vinyl. Water based paint is oderless, non-toxic, fade resistant and waterproof once dry. Each marker is 4 3/4 inches tall. Each marker has a 1/4 inch tip. These markers are available in 5 fluorescent colors, Fluorescent Yellow, Fluorescent Orange, Fluorescent Green, Fluorescent Pink, and Fluorescent Red. Quantity discount price available on 6 or more.