Posca PC-8K Fluorescent (formerly PC-85F) markers have an 8mm chisel tip and are available in several bright, fluorescent colors.
Opaque, water-based acrylic paint is non-toxic and acid-free. Odorless, light-fast, Xylene-free, lead-free and waterproof when dry. Safe for use by kids!
Use Posca markers on almost anything! Mark on metal, wood, glass, plastic, plaster, canvas and more. Excellent for signs exposed to the weather. Great for temporarily marking up windows. Popular with surfboard painters and chalkboard artists. Used extensively by auto dealers to mark windows with advertisements. Also used by auto body shop estimators to map out repairs on vehicles.
Marks will bond permanently to wood, clay pots, posterboard, plaster and other porous materials. Posca paint is removable from non-porous, sealed surfaces like glass, car bodies, chalkboards with a standard household/window cleaner or try Scrubs Cleaner Wipes