Ideal for art, crafting, home and office, these markers work well on paper, metal, ceramic, metal or plastic. The alcohol-based ink is water-resistant and permanent. They are durable and provide bold, long-lasting color, great for everyday use or for art projects. The fine tip markers feature a 4.2mm felt nib ideal for fine lines and writing; the extra-fine tip features a 1.2mm felt nib for extra fine details.