Pentel paint markers are perfect for writing and drawing on a variety of surfaces including thick paper, metal, glass, ceramic, plastic and rubber.   great for mechanics, metal and wood working, plumbers, construction and artists.   opaque Paint Marker ink is permanent, waterproof and produces bright vivid colors that look and feel like paint. 4. 0mm medium Bullet tip writes a bold and clear 2. 0mm line. Available in 15 vibrant colors. Backed by a limited lifetime